EngineSpecs

Expanded Blueprint Specs:

The first thing you will notice is a whole lot more data than you get from the NHRA Tech Bulletins pages. That is why individual engines are shown rather than every available engine for the year-make.
The additional data that is not included on the NHRA Tech Bulletins pages is not authorized or approved by NHRA so do not assume that this has the same authority in those areas as the information on the official NHRA Technical Bulletins. The data from the NHRA web Technical Bulletins is included here and every effort is made to ensure that this data is the most up to date information published by NHRA.
An interesting tool is the link on the right side of the page to show all the cars that use the engine you have selected. You will find that information valuable in considering options for class placement for this engine.
You will find all the relavent information from NHRA for accepted replacement parts - pistons, rods, oil pans, etc. - is all located in this one page. You do not have to look anywhere else to find that information.

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"

Cylinder Heads:	Casting No.		Intake Volume	Exhaust Volume
	F5WE-A		173.0cc	125.0cc	Replacement Cobra Jet Stock only
Edelbrock	60058		173.0cc	127.0cc	AM Replacement

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

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

Manufacturer	Part Number

Arias

F681

CP Pistons

F2-CP

8043

Ross

54937

Sealed Power

2287P

TRW

L2303F

Venolia

428

Accepted Replacement Oil Pans for Stock Eliminator

Engine Group - Ford V8 "FE" Series Effective 5/10/2022

Manufacturer	Part Number

Milodon

30740

Milodon

31130

Moroso

20606

Accepted Aftermarket Crankshafts

Manufacturer	Part Number

Scat

942810

Ford FE

Accepted Replacement Blocks

Manufacturer	Part Number

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

SUPER STOCK ONLY

Crower

B91018

6.489"

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

SUPER STOCK ONLY

Crower

ML93905B6-Ford

6.489"

778g

SUPER STOCK ONLY

Eagle

CRS-6490F3D

6.490"

Molnar Technologies

FH6488VPB-FE8-A

6.488"

766g

0.975"

BB Chev

Molnar Technologies

FH6488VTB-FE8-A

6.488"

766g

0.990"

BB Chev

Note the calculations for actual displacement the maximum actual compression ratio.

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