===================================================================== head mfr, model | Ford Motorsport GT-40 aluminum (Y302) ("Turbo Swirl") head type | Windsor material | aluminum chamber size | 64cc 64.5 (1) 65 (2) 64 (4) intake valve | 1.94 standard valve? | exhaust valve | 1.54 standard valve? | intake port size | "slightly wider than iron GT-40" (2) exhaust port size | "slightly wider than iron GT-40" (2) intake valve seat | powder-metal insert (2) exhaust valve seat | powder-metal insert (2) intake valve length | exhaust valve length| intake port volume | 178cc (1,2) 166cc (4) exhaust port volume | 63cc (1,2) 54cc (4) valve material (2) | both are 24-4N stainless steel valve guides (2) | cast iron inserts flow (1) | "10% to 12% better than the iron GT-40 heads" | "Out of the box, the intake flows a little better | than the J302 and the exhaust isn't quite as good | as the J302. Fully ported, I am told that these | heads come out a little better than the J302's." | Fully ported flow numbers (28") at .550" were 265 | to 270 intake and 182 exhaust (with a 1.60 valve). (2) | intake 218 CFM @ .550", exhaust 135 CFM @ .500" (2) | "given a standard performance porting job and an | insignificantly larger 1.960" intake valve... | intake 258 CFM @ .600, 182 CFM at .500." (3) | .100 lift 58/41 int/exh @ 28" (stock) | .250 132/123 | .500 204/146 (3) | .100 lift 63/56 int/exh @ 28" (ported) | .250 156/138 | .500 235/183 (4) | Typical Flow #'s (@ 28' H2o, with Motorsport valves) | Lift Intake scfm Exhaust scfm | --------------------------------------- | 0.1 64.2 52.3 | 0.2 114.3 97.7 | 0.3 166.5 128 | 0.4 199.4 136.5 | 0.5 212.5 134.1 | 0.6 217.4 ----- (5) | out of the box - 25 in H20, 60% humidity, | CFM are corrected values | Lift (in) 0.100 0.200 0.300 0.400 0.500 0.600 | Int (CFM) 38.01 98.71 128.07 168.53 179.66 179.66 | Exh (CFM) 26.69 69.25 94.24 104.06 107.59 107.59 (5) | addeded Milodon SS 1.90in and 1.60ex Chevy valves, | 3-angle valve job with 30 deg backcut. Opened up the | bowls, lowered the floors to s/s radius/ raised roof | .060. ( Ford Motorsport had enlarged the radius, but | left the floor and roof alone... causing a "wall") | About 12 hours of solid work (not incl flowing). | tested at 25 in H20, 54% humidity, CFM are corrected | values: | Lift (in) 0.100 0.200 0.300 0.400 0.500 0.600 | Int (CFM) 51.84 118.91 164.59 199.62 201.36 212.38 | Exh (CFM) 43.26 92.41 126.07 129.50 128.18 128.62 (5) | Next I lowered the floor another .080, expanded s/s | radius, radiused from the seat, cleaned up and | polished the guide areas, squared the exhaust ports, | fully polished the exhaust ports, deburred intake | ports, blended and smoothed out the bowls. Tested at | 25 in H20, 51% humidity, CFM are corrected values: | Lift (in) 0.100 0.200 0.300 0.400 0.500 0.600 | Int (CFM) 62.98 127.21 174.65 221.34 237.41 242.94 | Exh (CFM) 53.07 93.76 129.62 151.82 162.39 163.59 chamber shape | bean or "D", no quench on plug side (2) | "turbo swirl", relieved on intake side spring size | dual springs on complete head studs | screw in exhaust bolt pattern| standard (2) says there's enough metal to drill | and tap a standard slant pattern, but | the photo doesn't show it exhaust port shape | square weight | 22 pounds (2) approx price bare | approx price comp. | part number bare | M-6049-Y302 part number comp. | M-6049-Y303 CARB approval (2) | yes spark plug (2) | will take either tapered or gasketed plugs comments | supposed to have thick wall ports and deck to allow | radical porting and milling, no heat crossover, no | valve/piston interference when using any (early '94) | SVO camshaft (1,2) | these are similar, but not identical to the iron GT40s (2) | seat inserts are originally have radiused seats, but | are cut for three angles on intake, single 44 deg exh (2) | has one piece water jacket core; does not have the | water deflector on the exhaust side like the regular | iron heads. .400 thick deck. (4) | items from spec sheet included with heads unattributed data | Hot Rod, Ford Cylinder Head Guide, Sep 94 | (apparently preproduction prototypes) (1) | [email protected] (Brian Kelley) | (comments from a discussion with Ford, Oct 1994) (2) | Super Ford, "Bolt-On '95" Jan 1995 | (still not actually finalized or available at press) (3) | Super Ford, Dec 95 (4) | "Kennedy, Alan S"
===================================================================== head mfr, model | Edelbrock Victor head type | Windsor material | aluminum chamber size | 47cc intake valve | exhaust valve | standard valve? | intake port size | exhaust port size | intake valve seat | exhaust valve seat | intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | flow | chamber shape | spring size | studs | exhaust bolt pattern| exhaust port shape | weight | approx price bare | approx price comp. | part number bare | part number comp. | CARB approval | spark plug | comments | other comments | raised intake and exhaust ports | no heat crossover | relocated spark plug | "decreased valve angles" unattributed data | Super Ford, Feb 97 ===================================================================== head mfr, model | AR Incorporated (formerly Ford M-6039-J302) head type | Windsor material | aluminum chamber size | 58cc intake valve | 2.02 standard valve? | Chevy exhaust valve | 1.60 standard valve? | Chevy intake port size | 2.07H x 1.20W (1) exhaust port size | intake valve seat | insert exhaust valve seat | insert intake valve length | exhaust valve length| intake port volume | 170cc exhaust port volume | 60cc valve material | valve guides | insert, .535 OD (1) flow (2) | ported J302s flowed at 28" | lift intake exhaust | .100 68 66 | .200 127 124 | .300 187 162 | .400 227 189 | .500 256 201 | .600 267 209 chamber shape | spring size | studs | screw in (1) exhaust bolt pattern| standard/diagonal dual (1) exhaust port shape | D (1) weight | 23 pounds each (3) (5) approx price bare | $995 approx price comp. | $1395 part number bare | part number comp. | CARB approval | no spark plug | taper seat (1) comments | Ford stopped selling this head in 1994 (1) | heads have no heat riser or Thermactor passages (4) | The J302s are near-as-dammit copies of the iron | Ford heads. I'd be willing to bet most of the cores | are the same, except for the changes required for | the new ports. unattributed data | Hot Rod, Ford Cylinder Head Guide, Sep 94 (1) | Super Ford, "Bolt-On '95" Jan 1995 (2) | "John J. Stempien"
===================================================================== head mfr, model | World Products Windsor (Dart) head type | Windsor material | cast iron chamber size | 64cc intake valve | 2.02 standard valve? | exhaust valve | 1.60 standard valve? | intake port size | 1.1W x 2.02H (1) exhaust port size | 1.2W x 1.27H (1) intake valve seat | none (1) exhaust valve seat | none (1,4) (see comments) intake valve length | Chevrolet SB (4) exhaust valve length| Chevrolet SB (4) intake port volume | 194cc exhaust port volume | valve material | valve guides | none; drilled in iron head (1) flow | 225 CFM intake, 140 CFM exhaust @ 28" water (ibid.) (7) | stock vs. Extrude Honed - no pressure drop given | intake exhaust | stock extrude stock honed | .100 56 65 54 59 | .150 82 99 81 86 | .200 111 124 104 112 | .250 139 149 121 138 | .300 161 170 132 159 | .350 188 194 137 181 | .400 200 215 143 192 | .450 209 233 150 202 | .500 221 247 149 209 | .550 230 259 150 212 | .600 238 271 150 215 chamber shape | heart, slight quench on plug side (1) spring size | seats cut for 1.55" dia. springs (1) | complete heads have 100# seat pressure, 1.750 ht. (3) studs | screw in; 4 drilled and tapped into intake port (1) exhaust bolt pattern| dual, horizontal, 2.0" and 3.0" spacing (1) exhaust port shape | square weight | 47 pounds bare (1) approx price bare | $645 approx price comp. | $945 part number bare | part number comp. | CARB approval | yes, D-343 (2) spark plug | 14mm, 5/8" reach, tapered seat (3) comments | for 351-sized or very high RPM 302 motors (1) | no steam holes, upper water port beside head bolt (1) | comes machined for Perfect Circle valve stem seals (1) | intake port walls are straight, no bulge to clear | the intake pushrod, small dia. pushrod drilling | Dart's installation sheet says the iron heads have | hardened seats on the exhaust side; I have seen Dart | heads without exhaust seat inserts. -dw (1) | the installation sheet says that even though the heads | have CARB EOs, the EGR and heat crossover passages | are not drilled as shipped (2) | "relocated valvetrain" (2) | .400 thick deck (5) | due to the shape of the underside of the heads, | the first and last lifters on each bank cannot be | extracted without removing the heads (6) | Dart heads have revised spark plug holes, such that | headers + Darts = French toast plug boots. unattributed data | Hot Rod, Ford Cylinder Head Guide, Sep 94 (1) | [email protected] (2) | Popular Hot Rodding, October 1994 (3) | Dart head installation sheet (4) | Summit May/Jun 95 catalog (5) | Super Ford, October 1995 (6) | [email protected] fordnatics 10 Jun 1996 (7) | High Tech Performance, Jan 97
===================================================================== head mfr, model | World Products Windsor (Dart) head type | Windsor material | aluminum chamber size | 64cc intake valve | 2.02 standard valve? | exhaust valve | 1.60 standard valve? | intake port size | exhaust port size | intake valve seat | insert exhaust valve seat | insert intake valve length | exhaust valve length| intake port volume | 194cc exhaust port volume | valve material | valve guides | insert flow | chamber shape | spring size | studs | screw in exhaust bolt pattern| dual, horizontal, 2.0" and 3.0" spacing exhaust port shape | square weight | approx price bare | $1198 approx price comp. | $1498 part number bare | part number comp. | CARB approval | yes, D-343 spark plug | comments | for 351-sized or very high RPM 302 motors (2) | one of the unmentioned design details of this | head is the re-located spark plugs (for better | flame propagation, and to give us head-aches | with headers and plug wire installation) (3) | due to the shape of the underside of the heads, | the first and last lifters on each bank cannot be | extracted without removing the heads unattributed data | Hot Rod, Ford Cylinder Head Guide, Sep 94 (1) | Popular Hot Rodding, October 1994 (2) | [email protected], observations at | '94 PRI show in Santa Clara (3) | Super Ford, October 1995 ===================================================================== head mfr, model | World Products Windsor Jr. (Dart) head type | Windsor material | iron chamber size | 58cc intake valve | 1.94 standard valve? | exhaust valve | 1.60 standard valve? | intake port size | exhaust port size | intake valve seat | exhaust valve seat | intake valve length | exhaust valve length| intake port volume | 171cc exhaust port volume | valve material | valve guides | flow | chamber shape | spring size | studs | screw in exhaust bolt pattern| dual, horizontal, 2.0" and 3.0" spacing exhaust port shape | square weight | approx price bare | $645 approx price comp. | $945 part number bare | part number comp. | CARB approval | yes, D-343 (1) spark plug | comments | for 289/302 motors (2) | due to the shape of the underside of the heads, | the first and last lifters on each bank cannot be | extracted without removing the heads unattributed data | Hot Rod, Ford Cylinder Head Guide, Sep 94 (1) | Popular Hot Rodding, October 1994 (2) | Super Ford, October 1995 ===================================================================== head mfr, model | World Products Windsor Jr. (Dart) head type | Windsor material | aluminum chamber size | 58cc intake valve | 1.94 standard valve? | exhaust valve | 1.60 standard valve? | intake valve seat | exhaust valve seat | intake port size | exhaust port size | intake valve length | exhaust valve length| intake port volume | 171cc exhaust port volume | valve material | valve guides | flow | chamber shape | spring size | studs | screw in exhaust bolt pattern| dual, horizontal, 2.0" and 3.0" spacing exhaust port shape | square weight | approx price bare | $1198 approx price comp. | $1498 part number bare | part number comp. | CARB approval | yes, D-343 spark plug | comments | for 289/302 motors (2) | accessory bolt hole positions sometimes not | properly located; can cause difficulty with brackets. (2) | due to the shape of the underside of the heads, | the first and last lifters on each bank cannot be | extracted without removing the heads unattributed data | Hot Rod, Ford Cylinder Head Guide, Sep 94 (1) | Popular Hot Rodding, October 1994 (2) | Super Ford, October 1995 ===================================================================== head mfr, model | Arao Engineering head type | 4 valve pushrod material | aluminum chamber size | 68cc (1) intake valve | 2 x 1.65" (1) standard valve? | no exhaust valve | 2 x 1.40" (1) standard valve? | no intake port size | exhaust port size | intake valve seat | exhaust valve seat | intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | flow | .050" lift, 65 CFM @ 28" (1) | .550" lift, 300 CFM @ 28" (1) chamber shape | squared, small quench on intake and exhaust (1) spring size | studs | no - rail rockers (1) exhaust bolt pattern| stock Ford (1) exhaust port shape | weight | approx price bare | approx price comp. | part number bare | part number comp. | CARB approval | spark plug | comments | four valves per cylinder (1) | rocker ratio is 1.25:1 (1) | intake valve inclination 12 deg, exhausts vertical unattributed data | [email protected] (1) | Muscle Mustangs & Fast Fords, December 1991 ===================================================================== head mfr, model | Wil-Burt head type | Windsor material | iron or aluminum chamber size | 58cc (2) intake valve | standard valve? | exhaust valve | standard valve? | intake port size | exhaust port size | intake valve seat | exhaust valve seat | intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | flow | chamber shape | spring size | studs | exhaust bolt pattern| spread only (2) exhaust port shape | weight | approx price bare | iron $629 bare, aluminum $1229 bare approx price comp. | part number bare | part number comp. | CARB approval | spark plug | comments | apparently same head as TFS "Street Heat" unattributed data | [email protected] (1) | from Summit catalog, fall 1995 (2) | from Summit catalog, fall 1995
1992 image of exhaust ports.
===================================================================== head mfr, model | Ford 351 Windsor D0OE, C9OE castings head type | Windsor material | cast iron chamber size | 65cc [(1) 58.9-61.9 for D0OZ-6049-C, . | 56.3-59.7 for C9OZ-6049-F intake valve | 1.84 (1) standard valve? | yes exhaust valve | 1.54 (1) standard valve? | yes intake port size | 1.16W x 1.92H, narrows to .92 due to pushrod bulge exhaust port size | .975W x 1.20H [(1) .96 x 1.24] intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | 137.5cc exhaust port volume | 44cc valve material | valve guides | integral iron flow | chamber shape | bean, slight quench on plug side spring size | studs | pressed in, stepped 3/8 to 5/16 positive stop exhaust bolt pattern| stock exhaust port shape | squarish with rounded upper left edge weight | 49 pounds with valvesgear, 44 stripped approx price bare | approx price comp. | part number bare | C9OZ-6049-F or D0OZ-6049-C part number comp. | CARB approval | n/a spark plug | 18mm comments | Thermactor hole drilled above ports, but holes thru | ports not drilled intersecting the hole. Exhaust | valve guide is lengthened to accept the drilling. | Stock heads used 2pc spring retainers, dual springs | on exhaust side, single springs on intake (yes!) | No steam holes, upper water port beside head bolt. | L-shape early 351W intake water passages, 8 bolts | These heads were used on 1969-1970 351W motors. unattributed data | [email protected] (1) | Ford Performance, Pat Ganahl ===================================================================== head mfr, model | Ford 1978 351 Windsor D8OE head type | Windsor material | cast iron chamber size | intake valve | standard valve? | exhaust valve | standard valve? | intake port size | 1.03W x 1.88H exhaust port size | 0.95W x 1.25H intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | 130cc exhaust port volume | 41.5cc valve material | valve guides | integral iron flow | chamber shape | bean, *no* quench on spark plug side spring size | studs | no; 5/16 tapped holes for sled rockers exhaust bolt pattern| stock exhaust port shape | squarish, slightly rounded on upper left side weight | approx price bare | approx price comp. | part number bare | D8OE-6049 part number comp. | CARB approval | yes, factory spark plug | 14mm comments | no steam holes, upper water port beside head bolt | 6 bolt, 302-style intake water passages unattributed data | [email protected] ===================================================================== head mfr, model | Ford E6SE (5.0 Mustang) head type | Windsor material | cast iron chamber size | 62.9-65.9cc (1) intake valve | standard valve? | yes exhaust valve | standard valve? | yes intake port size | 1.03W exhaust port size | 0.95W intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | integral iron flow | intake 158 CFM @ .500, 28" chamber shape | heart, lots of quench on plug side spring size | studs | no, 5/16 tapped holes for sled rockers exhaust bolt pattern| stock exhaust port shape | squarish, rounded on upper left corner weight | approx price bare | approx price comp. | part number bare | E6SE-6049 part number comp. | CARB approval | yes, stock spark plug | 18mm comments | Ports are very smooth, look very nice | Other factory Windsor heads have the bottom edge of | the intake valve about .060 below the deck. These | have the bottom edge .200 below the deck; ie the | valves are higher up in the chamber than older heads (1) | the E6SE heads were used on the Mustang for '86 only. unattributed data | [email protected] (1) | [email protected] (2) | Super Ford "Power Mechanics" Jan 95 ===================================================================== head mfr, model | Ford E5TE (5.0 Mustang '87-'93) (1,3) head type | Windsor material | cast iron chamber size | 60.3-63.6cc (1) intake valve | standard valve? | yes exhaust valve | standard valve? | yes intake port size | exhaust port size | intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | integral iron flow | intake 158 CFM @ .500, 28" (4) | .100 lift 50/41 int/exh @ 28" stock | .250 128/96 | .500 162/126 chamber shape | spring size | studs | no, 5/16 tapped holes for sled rockers exhaust bolt pattern| stock exhaust port shape | squarish, rounded on upper left corner weight | approx price bare | approx price comp. | part number bare | E6SE-6049 part number comp. | CARB approval | yes, stock spark plug | 18mm comments (1) | used on '87 and later Mustang 5.0s unattributed data | [email protected] (1) | [email protected] (2) | Super Ford "Power Mechanics" Jan 95 (3) | [email protected] reported his '89 has E7TEs (4) | Super Ford "Power Mechanics" Dec 95 ===================================================================== head mfr, model | Ford 221 CID head type | Windsor material | cast iron chamber size | 48.3 - 51.3cc intake valve | 1.67 standard valve? | yes exhaust valve | 1.45 standard valve? | yes intake port size | 1.00W x 1.76H exhaust port size | 1.00W x 1.24H intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | integral iron flow | chamber shape | "triangular", lots of quench on plug side spring size | studs | pressed in exhaust bolt pattern| stock exhaust port shape | weight | approx price bare | approx price comp. | part number bare | C3OZ-6049-AE part number comp. | CARB approval | n/a spark plug | comments | photo in Ford Performance book shows no water | passages by upper head bolts, shows slotted steam | holes at top of chamber unattributed data | Ford Performance, Pat Ganahl ===================================================================== head mfr, model | Ford 260 CID head type | Windsor material | cast iron chamber size | 52.0 - 55.0 cc intake valve | 1.78 standard valve? | yes exhaust valve | 1.45 standard valve? | yes intake port size | 1.00W x 1.76H exhaust port size | 1.00W x 1.24H intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | integral iron flow | chamber shape | spring size | studs | pressed in exhaust bolt pattern| stock exhaust port shape | weight | approx price bare | approx price comp. | part number bare | C3OZ-6049-AF part number comp. | CARB approval | n/a spark plug | comments | unattributed data | Ford Performance, Pat Ganahl ===================================================================== head mfr, model | Ford 289 CID, 1963-1967, 302 CID, 1968 head type | Windsor material | cast iron chamber size | 52.0 - 55.0 cc intake valve | 1.78 standard valve? | yes exhaust valve | 1.45 standard valve? | yes intake port size | 1.04W x 1.94H exhaust port size | .96W x 1.24H (1.00W x 1.24H for '67 289) intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | integral iron flow | chamber shape | complex, concave curves around spark plug spring size | studs | pressed in exhaust bolt pattern| stock exhaust port shape | weight | approx price bare | approx price comp. | part number bare | C3AZ-6049-AF ('63-'65 289), C6OZ-6049-AE ('66 289) | C7OZ-6049-E ('67 289), C8OZ-6049-G ('68 302 2V) | C8OZ-6049-C ('68 302 4V), C8OZ-6049-A ('68 302 4V) part number comp. | CARB approval | n/a spark plug | comments | some had crescent shaped steam slot, deleted on | later heads unattributed data | Ford Performance, Pat Ganahl ===================================================================== head mfr, model | Ford 289, 302 CID, 1968 head type | Windsor material | cast iron chamber size | 61.7 - 64.7 cc intake valve | 1.78 standard valve? | yes exhaust valve | 1.45 standard valve? | yes intake port size | 1.04W x 1.94H exhaust port size | 1.00W x 1.24H (.96 x 1.24 on '68 302) intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | integral iron flow | chamber shape | complex, concave curves around spark plug spring size | studs | pressed in exhaust bolt pattern| stock exhaust port shape | weight | approx price bare | approx price comp. | part number bare | C8DZ-6049-D ('67 289) C8AZ-6049-F ('68 302) part number comp. | CARB approval | n/a spark plug | comments | some had crescent shaped steam slot, deleted on | later heads unattributed data | Ford Performance, Pat Ganahl ===================================================================== head mfr, model | Ford 302 CID, 1969-1970 head type | Windsor material | cast iron chamber size | 56.7 - 59.7 cc intake valve | 1.78 standard valve? | yes exhaust valve | 1.45 standard valve? | yes intake port size | 1.04W x 1.94H exhaust port size | 0.96W x 1.24H intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | integral iron flow | chamber shape | spring size | studs | pressed in exhaust bolt pattern| stock exhaust port shape | weight | approx price bare | approx price comp. | part number bare | D0OZ-6049-B part number comp. | CARB approval | n/a spark plug | comments | some had crescent shaped steam slot, deleted on | later heads unattributed data | Ford Performance, Pat Ganahl ===================================================================== head mfr, model | Ford 289 CID, High Performance, 1963-1967 head type | Windsor material | cast iron chamber size | 52.0 - 55.0 cc intake valve | 1.78 standard valve? | yes exhaust valve | 1.45 standard valve? | yes intake port size | 1.04W x 1.94H exhaust port size | .96W x 1.24H intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | integral iron flow | chamber shape | complex, concave curves around spark plug spring size | studs | screw in exhaust bolt pattern| stock exhaust port shape | weight | approx price bare | approx price comp. | part number bare | C3AZ-6049-B ('63-'66), C7ZZ-6049-B ('67) part number comp. | CARB approval | n/a spark plug | comments | "HP" cast on head, set up for screw in studs and | guide plates, valve springs sit in deep cups instead | of on top of head unattributed data | Ford Performance, Pat Ganahl ===================================================================== head mfr, model | Ford BOSS 302, 1969-1970 head type | Cleveland material | cast iron chamber size | 57.2 - 60.0 cc (1) | 61.3 - 64.3cc (1969) 57.0-60.0 (1970) intake valve | 2.25 ('69) 2.19 ('70) standard valve? | yes (1) | 2.225-2.235 (1969) 2.185-2.195 (1970) exhaust valve | 1.74 standard valve? | yes (1) | 1.702-1.717 (1969) 1.702-1.717 (1970) intake port size | 1.75W x 2.50H oval exhaust port size | 1.74W x 2.00H intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | integral iron flow | chamber shape (1) | closed spring size | studs | screw in exhaust bolt pattern| stock exhaust port shape | rounded square weight | approx price bare | approx price comp. | part number bare | D0ZZ-6049-A (1970) part number comp. | CARB approval | n/a spark plug | comments | One of the Ford Muscle Parts booklets detailed how | to port and polish the BOSS heads, but the general | concensus is that they're too big for a 302 already, | and Ford's porting recommendations will hurt | performance on most engines (1) | single groove valve locks unattributed data | Ford Performance, Pat Ganahl (1) | Street Rodder Sept. 1991, via | [email protected] (K Porter) ===================================================================== head mfr, model | Ford 351C-2V head type | Cleveland material | cast iron chamber size | 76.9-79.9cc intake valve | 2.05 standard valve? | yes exhaust valve | 1.65 standard valve? | yes intake port size | exhaust port size | intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | 2.02 x 1.40 oval (1) exhaust valve length| 1.84 x 1.38 oval (1) intake port volume | exhaust port volume | valve material | valve guides | integral iron flow (2) | "pocket ported" intake 203 CFM at 0.400, exhaust 145 | will not flow much more unless a bigger intake valve | is installed. Exhaust valve size will not improve | the flow any. chamber shape | open spring size | studs | no; tapped 5/16 for sled rockers exhaust bolt pattern| stock exhaust port shape | oval weight | 52 pounds, stripped (3) approx price bare | approx price comp. | part number bare | part number comp. | CARB approval | n/a spark plug | comments (1) | multi-groove valve locks unattributed data | Ford Performance, Pat Ganahl (1) | Street Rodder Sept. 1991, via | [email protected] (K Porter) (2) | [email protected] (Chip Barrett-Smith) (3) | [email protected] ===================================================================== head mfr, model | Ford 351C-4V, BOSS, HO, CJ head type | Cleveland material | cast iron chamber size (2) | 73.9-76.9cc (1972 HO) 73.9-76.9cc (1971 CJ) | 64.6-67.6cc (1970 BOSS) 61.3-64.3cc (1970 4V) intake valve | 2.19 standard valve? | yes exhaust valve | 1.71 standard valve? | yes intake port size | 2.50 x 1.75 (2) exhaust port size | 2.00 x 1.74 (2) intake valve seat | integral iron exhaust valve seat | integral iron intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | integral iron flow (1) | pocket ported intake 313 CFM at 0.600, exhaust | 180 CFM @ .600, 28" drop chamber shape | open (HO, CJ, low CR 4V) closed (BOSS, high CR 4V) spring size | studs | no; tapped 5/16 for sled rockers (4V, CJ) | screw in studs (BOSS, HO) exhaust bolt pattern| stock exhaust port shape | oval weight | approx price bare | approx price comp. | part number bare | part number comp. | CARB approval | n/a spark plug | comments (2) | HO and BOSS had single groove valve locks, all | others had multi-groove valve locks unattributed data | Ford Performance, Pat Ganahl (1) | [email protected] (Chip Barrett-Smith) (2) | Street Rodder Sept. 1991, via | [email protected] (K Porter) ===================================================================== head mfr, model | Ford 302/351 SVO head type | Cleveland material | aluminum chamber size | | intake valve | 2.16 (yes) standard valve? | no exhaust valve | 1.71 standard valve? | yes intake port size | exhaust port size | intake valve seat | cast iron exhaust valve seat | cast iron intake valve length | exhaust valve length| intake port volume | exhaust port volume | valve material | valve guides | cast iron flow | chamber shape | spring size | studs | tapped for screw-in exhaust bolt pattern| stock exhaust port shape | high-ported weight | approx price bare | approx price comp. | part number bare | M-6049-A3 part number comp. | CARB approval | n/a spark plug | comments | unattributed data | Ford Performance Equipment Catalog 1982-83 ===================================================================== head mfr, model | Brodix Track 1 head type | Windsor material | aluminum chamber size | 68cc intake valve | 2.08 standard valve? | exhaust valve | 1.60 standard valve? | intake port size | exhaust port size | intake valve seat | exhaust valve seat | intake valve length | exhaust valve length| intake port volume | 195cc exhaust port volume | valve material | valve guides | flow | 260.8 CFM @ .700, intake, as-shipped | 180.3 CFM @ .700, exhaust, as-shipped | 307.2/225.4 "fully ported" chamber shape | spring size | studs | yes exhaust bolt pattern| standard or "N Motorsport" exhaust port shape | square weight | approx price bare | $1000.99 approx price comp. | $1599.99 part number bare | T1 STD F part number comp. | CARB approval | no spark plug | Autolite 52 comments | .750 thick deck | drilled for 1/2" head bolts | no EGR crossover | unattributed data | Super Ford October 1997 ===================================================================== head mfr, model | Avenger Stage I head type | Windsor material | aluminum chamber size | 58cc | intake valve | 2.02" standard valve? | no exhaust valve | 1.60" standard valve? | no intake port size | exhaust port size | intake valve seat | exhaust valve seat | intake valve length | exhaust valve length| intake port volume | 192cc exhaust port volume | valve material | EV-8 stainless valve guides | silicon-bronze flow | intake exhaust | lift flow lift flow | .100 70 .100 54 | .200 150 .200 102 | .300 204 .300 132 | .400 242 .400 171 | .500 262 .500 190 | .550 268 .550 196 | .600 272 .600 201 | .650 275 .650 204 chamber shape | bean spring size | studs | exhaust bolt pattern| dual, Ford / Dart horizontal exhaust port shape | weight | approx price bare | $990 approx price comp. | $1199 part number bare | part number comp. | CARB approval | spark plug | comments | mfr. HRW Manufacturing, distributor Ford Performance | Solutions | 20 degree intake valve angle | intake valve relocated .110" toward center of chamber, | exhaust valve relocated .040" toward chamber wall | exhaust port raised .400" | .600" thick deck | tall valve cover rail to allow girdles under standard | valve covers unattributed data | Ford High Performance, June 1997 ===================================================================== head mfr, model | Canfield head type | Windsor material | aluminum chamber size | intake valve | 2.02 to 2.08 optional standard valve? | exhaust valve | 1.60 standard valve? | intake port size | exhaust port size | intake valve seat | exhaust valve seat | intake valve length | exhaust valve length| intake port volume | 190cc exhaust port volume | valve material | valve guides | flow | chamber shape | spring size | studs | yes exhaust bolt pattern| exhaust port shape | weight | approx price bare | approx price comp. | $1195 std part number bare | part number comp. | CARB approval | spark plug | comments | .500 thick deck | | | unattributed data | ad in Super Ford, October 1997 ===================================================================== ===================================================================== == Misc Stock Head Data ============================================= (data from [email protected] unless noted) ==351W Heads on 302 ------------------------------------------------- When using 351W or most aftermarket heads on 302s you need to install hardened washers under the head bolts, or the bolts will deform the holes in the heads. Hardened washers can be ordered from speed shops, but can also be obtained from machine tool supply or aircraft supply shops. Don't try plain old hardware store washers as they'll mash out of shape under load. Many aftermarket heads also have the 351W style 1/2" head bolts as they're supposed to be "universal" fit. You should always use hardened washers on with aluminum heads no matter what the bolt hole size. If you swap "real" '69-'76 351W heads onto a 302 you need to use the 351W style intake manifold gaskets, as the 302 gaskets will leak water at the unique 351W intake manifold water ports. ==Measured 351W Chamber Volumes-------------------------------------- Ford 351W '69 4v head 56-59cc C9OZ-6049-F '70 head 63-64cc or 59-62cc - sources don't match D0OZ-6049-C - mine cc'd out at 65cc C9OE and DO0E 351W heads appear to be identical ==Cleveland Rockers ------------------------------------------------ Big block Chevrolet rocker arms can be used on Cleveland type heads. Their nominal ratio is 1.71, vs. 1.73 for the Cleveland. Nowadays you can get the proper Cleveland rocker for about the same price as the Chevy part. ==Windsor Rockers ------------------------------------------------ Hot Rod's Engines 1993 mentioned builder Joe Sherman runs small block Chevy rockers on Windsor heads. The ones I measured didn't line up by over a quarter inch. ==Oddball 2V Cleveland Exhaust Ports-------------------------------- 351C-2v heads are popular for some racing classes. The 2V, 351M, and 400 heads are all pretty much the same, *but* some 351M heads have a bizarre "potbelly" exhaust port, with a the top of the port lowered to about the valve guide level. You can barely get a finger through the port, it's that tiny. And for some reason it's part of the water jacket, so you'll hit water if you try to grind it out. ==High Port Clevelands --------------------------------------------- Back inna old days the Cleveland people used to "high port" the heads by lopping off the outside between the valve cover and bottom of the exhaust port, then adding an aluminum plate to move the ports up and straighten them out. The 4v Cleveland ports had a very sharp kink in them, bending more than 90 degrees, to get manifold clearance in the typical tight Ford engine compartment. High-porting went out of fashion as soon as the first SVO heads came out, which do basically the same thing right in the head casting. I've never heard of anyone attempting this with a Windsor, and I'm not sure why anyone would bother. 20 years ago if you saw a high-ported Cleveland you knew it was a seriously bad motor; now maybe it's just flash to part suckers from their money. BTW, the 2v Cleveland has an *entirely different* exhaust port than the 4v, actually larger, straighter, has a beautiful shortside radius, and flows more air. I've never understood why Ford didn't use the 2v exhaust port on both heads, but there's a lot I don't understand about Ford. emory!werple.apana.org.au!speednut (Mark Jose) - Australian 302 Clevelands were 351Cs with 3.0 inch cranks. They had a closed chamber 2V head. Regular Australian 4V and 2V 351Cs used open chamber 2V style heads with 2.05/1.65 valves. "Imported" 4V engines used in the last of the Phase Falcons used 2.19/1.71 valves. HR June 83 - "C8ZE-B HP" castings are service replacement 289 HiPo parts; some or all are marked "302" Ford Performance, Pat Ganahl - Ford changed pushrod and valve stem lengths on both the 289 and 302 around 10-21-68. The later 302s have .060 longer stems and pushrods. Ford offered several different spring keepers and lash caps to correct mismatches in service replacements. - Ford began using the same basic head casting for both the 302 and 351W in 1977. The main difference is the head bolt hole diameter - 7/16 for 302s, 1/2 on 351s. These later 351s, originally identified as 351Ks, have the rectangular 302 intake water passages and 6 intake manifold bolt holes. Original 351W heads have L-shaped water passages and 8 intake manifold bolt holes. - says small block Chevy valves and studs will work in Windsors, though the Chevy valve tip is somewhat shorter and may require a different length pushrod to properly set rocker geometry. [email protected] (Walt Boeninger) fordnatics 20 Sep 1995 - Also, the late model 302 heads have a larger water passage at the rear, which means the intake gaskets are different between early and late models. We found this out the hard way last weekend, when my friend didn't pay attention to the fact that the intake gasket water passage extended past the end of the cylinder head. Makes for a major water leak. - [The ones I've seen have had the huge holes at both ends, which would make them leak twice as much, right? -dlw] == Combustion Chamber Sizes ========================================= (data from [email protected] unless noted) 289 HiPo 49.2cc 302-4V 53.5cc 289 4v std 54.5cc Dart 58.0cc Windsor, Windsor Jr, SVO E351 302-2V 58.2cc '73-'76 BOSS 302 58.6cc '70 --- 60.0cc Edelbrock Performer --- 60.0cc TFS 5.0, 1.94/1.60 (Summit) 351W 60.4cc D1OZ-6049B to '76 --- 61.0cc some TFS heads 289 2v 63.2xx BOSS 302 62.8cc '69 351C-4V 62.8cc '70 302-2V 63.2cc '68-'72 --- 64.0cc Dart II cast iron (Summit) 351W 65.0cc '69-'70 C9OE and DO0E (dlw) BOSS 351 67.0cc --- 69.0cc Edelbrock Performer 351W '77-up 69.0cc 302, 351K 69.0cc '77-'81 (67.5-70cc) --- 69.0cc TFS 5.0, 1.94/1.60 (Summit) 351C2V 76.2cc '70-'74 | B&A says the chambers are all 351C4V 76.2cc '72-'74 | actually the same, just 351M-400M 78.4cc (all) | production variations == More Handy Combustion Chamber Sizes ============================== ([email protected]) Year Casting # prefix Valve sizes Chamber Volume '79-84 D94E 1.782in/1.46ex 67.5-70.5cc '85 E5AE 1.782in/1.46ex 67.5-70.5cc '86 E6SE 1.782in/1.46ex 62.9-65.9cc '87-93 E5TE 1.782in/1.46ex 60.3-63.6cc '93 Cobra (GT40) F3ZE 1.840in/1.54ex 60.3-62.5cc '80-'82 4.2L D94E 1.680in/1.46ex == Comparison Figures =============================================== SCR June 93 - Brzezinski ported small block Chevy Dart heads intake exhaust comments 290 200 CNC machined and hand ported 250 185 CNC machined chambers, deep bowls, valve guides removed, no hand porting 250 170 CNC machined chambers, shallow bowls, no hand porting 226 150 stock Dart == Other Heads ====================================================== The following heads sometimes show up at swap meets or in Hemmings Motor News. They are probably pretty good, but you need special manifolds and headers to bolt them on, and most don't have provision for head-mounted accessories. They're pretty much curiosities unless you're looking for sheer visual impact, like on a street rod. Gurney-Eagle and Gurney-Weslake Indy heads from the 1960s, in 3 and 4 valve per cylinder layouts, pushrod. '63 Ford Indy heads, DOHC, four valve, conventional port '64 and later Ford Indy and Foyt Coyote heads, vertical port '68 Ford 302 tunnel port Trans Am pushrod heads DeTomaso-Weslake Mangusta 289 pushrod, aluminum (optional? I've seen photos of Mangustas with plain old Windsor heads) == Address List ===================================================== AR Incorporated aluminum Windsor, 429 heads 10/94 1696 Walter Street Ventura CA 93003 805-654-0654 Arao Engineering 4-valve 460, 351 heads 06/93 21400 Lassen Street Unit G Chatsworth CA 91311 818-709-4781 B&A Ford Performance Cleveland-to-Windsor intakes 08/92 PO Box 6553 Fort Smith AR 72906-6553 918-427-7757 BHP Canfield 10/97 313-455-1905 Dart Machinery alum. heads, blocks 11/93 353 Oliver Street Troy MI 48084 313-362-1188 313-362-2027 fax 800-553-8781 Ford SVO OEM 08/92 44020 North Groesbeck Highway Mt. Clemens, MI 48083-1115 313-337-1356 tech line Summit Racing Equipment stuff 08/94 PO Box 909 Akron, OH 44309-0009 216-630-0200 order line 216-630-0290 express order line (have numbers ready) Trick Flow Specialties Ford heads 05/94 1248 Southeast Avenue Chevy heads Tallmadge OH 44278 216-630-1555 212-630-5365 fax Will-Burt Automotive Ford SB heads 01/92 169 South Main Street Orrville OH 44667 216-682-7015 World Products Dart II heads 03/92 80 Trade Zone Court Ronkonkoma NY 11779 516-737-0450 World Products Dart II heads 03/92 353 Oliver Street Troy MI 48084 313-244-9822 ===================================================================== ========================= end of file ============================== ===================================================================== ========================= end of file ============================== =====================================================================