Engine Blueprint Specifications: 1968 Ford 335 HP 428 V8 Stock w/F5WE-A cylinder head
FORD-68
Issued: 7/1/1968
Last Revised: 1/1/2024
Revisions: 6-21-76, 8-6-76, 6-23-94, 12-07-94, 6-24-95, 9-5-95, 1-1-96, 5-12-99, 8-22-02, 3-18-03, 5-9-07 WR, 8-28-08 WR, 8/21/12 PC, 6/25/19 WR, 8/6/19 WR, 1-12-2021, 05-20-2023, 1/1/2024
Engine Family: Ford Motor Company, Ford V8 "FE" Series
Advertised Comp Ratio: 11.00:1
Induction: 1-4 Bbl
Engine Type: V8
Basic Specs: | Bore | Stroke | Main Journal Dia | Rod Journal Dia | Max Bore | Max Stroke | Max Displacement |
| 4.132" | 3.984" | 2.750" | 2.440" | 4.212" | 3.999" | 445.8 ci |
Piston-Rod Specs: | Piston Weight | Comp Height | Pin Weight | Rings | Rings Weight | Rod C/C | Max Rod C/C | Rod Weight | Min Assy Weight |
| 632 g | 1.640" | 90 g | 5/64, 5/64, 3/16 | 58 g | 6.488" | 6.513" | 765 g | 1545 g |
Compression: | Deck Height | Head Gasket | Piston Type | Dome/Dish Vol | Dome/Dish Hgt | Comb Chamber Vol | Max Compression |
| .008" | .026" | Dish w/notches | -10.25 cc | 0.080" | 68.0 cc | 11.62:1 |
Valve Train: | Int Rocker Ratio | Exh Rocker Ratio | Intake Valve | Exhaust Valve | Lifter Type | Spring Type | Lifter Dia. |
| 1.73:1 | 1.73:1 | 2.097" | 1.660" | Hyd | Outer w/damper | 0.875" |
Camshaft: | Intake Lift | Exhaust Lift | |
| .481" | .490" | |
| .527" | .527" | |
Intake Manifolds: | Casting No. | |
| C6AE-H | Aluminum |
| C7AE-F | Aluminum |
| C8OE-A | Cast Iron |
| C8OE-C | Cast Iron May not be used in Stock, SS ONLY |
Carburetors: | Number | Manufacturer | Trans | Type | Primary Throttle | Secondary Throttle | Primary Venturi | Secondary Venturi | |
| C8OF-AA | Holley | SM | 4-Bbl | 1.686" | 1.686" | 1.375" | 1.437" | (4174) |
| C8OF-AB | Holley | Auto | 4-Bbl | 1.686" | 1.686" | 1.375" | 1.437" | (4168) |
| C9AF-U | Holley | ALL | 4-Bbl | 1.686" | 1.686" | 1.375" | 1.437" | (4609) |
| HR-780-VS | Quick Fuel | SM | 4-Bbl | 1.686" | 1.686" | 1.380" | 1.442" | Secondary idle screws must be removed and holes plugged |
| SSR-780-VS | Quick Fuel | ALL | 4-Bbl | 1.686" | 1.686" | 1.380" | 1.442" | Replacement for all Holley 3310 type vacuum secondary carbs. Secondary idle screws must be removed and holes plugged. NOTE: All venturi specs include .005" maximum allowable tolerance. |
Notes: | | |
| Piston | If TRW L2303N piston is used, the dish depth spec changes from .080" to .050". |
Power Factors: | Stock Man | | Stock Auto | | S/S Man | | S/S Auto | | GT Man | | GT Auto | | GTFwd Man | | GTFwd Auto | |
Base Factors | 380 | 7/11/17 | 389 | 8/8/11 | 383 | 1/30/06 | 383 | 1/30/06 | 345 | | 345 | | 345 | | 345 | |
w/Rep Heads: Ford F5WE-A as Stock/SS. Edelbrock #60058 replacement for Stock, #60058 or #61857 in SS. | 383 | | 383 | | 383 | | 383 | | 350 | | 350 | | 350 | | 350 | |
Exception: Fairlane | 385 | | 385 | | 0 | | 0 | | | | | | | | | |
w/Rep Heads: | | | | | | | | | | | | | | | | |
Exception: Shelby | 385 | 5/19/03 | 385 | 5/19/03 | | | | | | | | | | | | |
w/Rep Heads: | | | | | | | | | | | | | | | | |
Accepted Replacement Pistons for Stock Eliminator
Effective 5/21/2023
Specs:
Comp Hgt-1.640"
Pin Dia-0.975"
Rings-5/64, 5/64, 3/16
Distance to Top Ring-0.255"
Piston Min Weight-632g
Accepted Replacement Oil Pans for Stock Eliminator
Engine Group - Ford V8 "FE" Series
Effective 5/10/2022
Accepted Aftermarket Crankshafts
Accepted Replacement Blocks
|
Genesis Performance |
M-6010-A427 |
|
|
Robert Pond Motorsports |
RPM "FE" |
|
|
Accepted Replacement Connecting Rods for Stock or S/S
Effective 8/23/2023
Specs:
C/C Length- 6.488"
Min Weight- 765g
Journal Dia- 2.438"
Big End Dia- 2.590"
Pin Dia- 0.975"
Manufacturer |
Part Number |
C/C Length |
Wgt. |
Pin Dia. |
|
|
Carrillo |
F-BBC-FE |
6.487" |
774g |
NA |
SUPER STOCK ONLY |
|
Crower |
B91018 |
6.489" |
NA |
0.975" |
390/427/428 Ford |
|
Crower |
B93018 |
6.489" |
765g |
0.975" |
390/427/428 Ford |
|
Crower |
B93911B |
6.488" |
765g |
0.990" |
BB Chev |
|
Crower |
ML93905B6 |
6.138" |
787g |
NA |
SUPER STOCK ONLY |
|
Crower |
ML93905B6-Ford |
6.489" |
778g |
NA |
SUPER STOCK ONLY |
|
Eagle |
CRS-6490F3D |
6.490" |
NA |
NA |
|
|
Molnar Technologies |
FH6488VPB-FE8-A |
6.488" |
766g |
0.975" |
BB Chev |
|
Molnar Technologies |
FH6488VTB-FE8-A |
6.488" |
766g |
0.990" |
BB Chev |
|