Alright guys i finally got a 96 351w to swap out my 96 302. I originally planned to fix the leaks throw some headers on it and call it that. Well i ended up tearing it apart and the previous owner must not have know how to change oil... Anyways i am rebuilding this motor and of course i want more power. I would really like to get 400 torque. I'm thinking a .30 over bottom end and maybe some cheap heads? I've found some gt40x heads on cl for $850 ready to bolt on with roller rockers and dual springs, originally off a 351 crate motor. My question is, can a make 400 torque with these heads, cam, and long tubes?

I'm doing this rebuild on as much of a budget as i can. Suggestions would be great! Thanks guys

 

IMO if you can't get 400tq out of a 5.8 you seriously messed something up, all it takes is 9-9.5:1 static CR and longtube headers. The heads/cam combo will determine where peak TQ occurs, with an RV grind you'll see the big numbers at lower rpms and with a HP grind it'll happen at higher rpms. GT40x heads are good pieces BTW.. no problem getting 350+hp and 400+ tq with those.

 

Well i shoot low so i will be pleased with the outcome. What kind of combination would you suggest? i'm thinking pacesetter headers simply because they are the best i've heard. But other than that with gt40x's what kind of cam would give me the most torque say int 3000-4000 range? Maybe lower? Or do you suggest talking to a cam manufacturer

Thanks

 

850.00 sounds like alot for those heads.I just sold my Edelbrock performer rpm heads for 700 with only 5000 miles on them.Unless you're in a hurry to get this engine together,I would look at aftermarket aluminum or offer much less for those heads.

 

the thing is theses heads are ready to go on. most other aluminum heads i've seen around my area are in the 1200 range without roller rockers or even valve springs in some cases.

 

Well price will depend on geographical location and supply/demand.If thats whats available in your area then so be it.Here is a flow chart for ford heads.Maybe it will help.

 

Thanks! thats some good info there. I'm obviously going to offer the guy less but i think i will end up with these heads. I wish i could find afr's or edelbrock on the cheap

 

The X heads are on par with Edelbrock Performers so it's a good buy IMO.

 

I realized that they are decent heads after I dug up that flow sheet info.The package with rocker arms makes it a good deal.Bring a straight edge and do a thorough inspection.

 

well sadly he has a potential buyer ahead of me. ohh well if i cant get them i'll rebuild my e7's or some gt40's i dont need aluminum heads anyways

 

well the Gt40X heads i was looking at are gone but now i'm looking into a possible 393 stroker kit. Is it possible to get my 400tq number out of a 393w stroker, cam, and long tubes? everything else stock maybe other than injectors?

 

With stock E7 heads you won't need bigger injectors and you definitely won't have any problem making your TQ goal.

 

what if i go with gt40 iron heads? does that make any difference?

 

If the cam remains stock and you only add 1.7 rockers for example then the 19s are still good.

 

would you suggest leaving the cam alone and going with 1.7 roller rockers? or doing a cam swap. I mean everything is apart i assumed i'm be doing a cam swap while i'm there