I am in the middle of building up a 400ci V8 out of a 77 Ranchero, that I plan to put in a 78 F-100 Custom shortbox 2wd pickup. I want to install a performance cam that will give me power in the 2000-5200rpm range, and a little more aggressive idle than stock.

I am going to run a Weiand Action Plus intake manifold, with a 750cfm holley double pumper up top, and transfer power through a built C6 auto with a shift kit, and a TCI Saturday night 2000 stall torque converter.

Any suggestions would be awesome.

Thanks

Adam Hanson

1978 F-100 Custom Short box 2wd.

 

Try using a cam with higher life and a split 204 intake and 214 duration, in fact, try a 194 and 204 duration cam, there'd be more torque in the usable street/off road range than with the 204/214.

 

most folks like the comp cams 268H type of cams

 

Your build sound much like mine. I used an Edelbrock roller chain, a cam with .485/.510 lift, I think 268 adv duration.

 

also the carb you are using is a little large, a 650 is more than large enough to do the job.

 

i like the new crower 390 series grinds.

 

I am using a Crane H272-2 with Crane Energizer Roller Rockers/guide plates/hardened pushrods, a Cloyes double roller timing chain, Fluiddamper, C6/shiftkit/TCI Torque Converter in 400 motor with Ohio Flattops, 351C-4V heads(10.3:CR), Edelbrock Performer Intake, Carter 750CFM carb, Sanderson headers, Flowmasters in a '53 F100. Since my truck is a '53, I have no emissions requirements. I don't think that you could run this motor in an Emissions tested vehicle. I have enough trouble passing the noise specs(95 db). The idle has a great sound, and thanks to the high stall torque converter it is very drivable.
Below is the cam spec:

Part Number: 523802
Grind Number: H-278-2 (REPLACES HMV-278-2A)
Engine Ident: 1970-1982 FORD-MERCURY V-8 BOSS 351-351C-
351M-400 CU.IN. GOOD IDLE, DAILY PERF.
USAGE, MILD BRACKET RACING

VALVE SETTING: INTAKE .000 EXHAUST .000 ----> HOT

LIFT: INTAKE @CAM 3114 @VALVE 539 ROCKER ARM RATIO
EXHAUST @CAM 3089 @VALVE 534 1.73
ALL LIFTS ARE BASED ON ZERO LASH AND THEORETICAL ROCKER ARM RATIOS

CAM TIMING OPENS CLOSES ADV DURATION
@ .004 INTAKE 26 BTDC 72 ABDC 278 °
TAPPET LIFT EXHAUST 80 BBDC 30 ATDC 290 °

SPRING REQUIREMENTS
TRIPLE DUAL OUTER INNER
PART NUMBER 99837

LOADS:
CLOSED 90 LBS @ 1.828 OR 1 53/64
OPEN 269 LBS @ 1.308
RECOMMENDED RPM
RANGE WITH MATCHING COMPONENTS
MINIMUM RPM 2200
MAXIMUM RPM 5200
VALVE FLOAT 6500

CAM TIMING OPENS CLOSES MAX LIFT DURATION
@ .050 INTAKE 2 BTDC 40 ABDC 109 °ATDC 222 °
TAPPET LIFT EXHAUST 56 BBDC (2) BTDC 119 °BTDC 234 °

 

Hey Danlee, what series Flowmasters are you running?

 

The Mufflers are Flowmaster 70 Series, Big Block.