hey!!!! im the Real RICKY BOBBY!

 

Like I said..no early efi 351 performance cars.

 

James W, this may be a dumb question but can you use a computer from a 5.0 on the 351 EFI truck motor? May give you a better performance tune and it they already stroke 302's to 347 there is not much difference in engine size.

 

Out of my area, but my gut would tell me no. First off... is the 302HO and the 351 the same firing order? Then you've got different throttle conditions to consider, different O2 sensor parameters, etc. I may be all wrong..but I've not heard of it.

 

Yes you can use a stock EFI on a 351. Firing orders must be the same 13726548. The mass air meter will compensate for the displacement. I have used a stock 302 EFI on a 351W and had no problems tuning it under 7000 RPM.





289
1-5-4-2-6-3-7-8

302 (Pre-82)
1-5-4-2-6-3-7-8

5.0
1-5-4-2-6-3-7-8

5.0 HO
1-3-7-2-6-5-4-8

5.0 Truck
1-5-4-2-6-3-7-8

351
1-3-7-2-6-5-4-8

 

Damn LCC, you are a fart smeller......err......I mean smart feller.

 

did you have to use bigger injectors?? doesnt the 5.0 h/o come with 19 or am i wrong on that?

 

Yes, 19's are stock. I can give you a brake down of the HP to injector size later but you need to match the injectors with the MASS air meter. So if you have a stock 302 and swap for a 351W just use theinjectors from the 302. They will work fine. The next step will be to upgrade the meter to 24lb/hr calibration and change the injectors to 24's lb/hr..

 

Planning ahead for my next engine. Anybody know what vehicle has a roller 351 block I can use for my next engine. I assume late 80's early 90's Fords that had EFI.

 

thats awesome. if i could go get the EFI of a junkyard and save 1000- 1500 thats the way i want to go.. if i did go that route i would need to change upper and lower manifolds. is there anything else im missing??