which budget heads would u use n why? I'm almost done peiceing together my D1 kit n I wanna lower the compression a little bit too be safe w runing 8 lbs. I'm looking at a set of 317's n sending them out for good port n polish, but before I do that, I would like to see what others have say about it

 

my buddy uses 6L truck heads and they work great for him. i plan on getting the same.

 

thats what I went with, 317's ported and polished. Installing them right now. So no #'s yet.

 

I vote 317 heads.

 

i used prc ls6 stage 2.5..
I will have dyno numbers this weekend..

 

317's on my turbo build, but still building.....

 

IF you have the heads use the 317 if not look into the TFS as cast think there selling around 1600 if you look around

 

It looks like 317's r the way to go, how thick of head gasket should I go with?





keep me posted when u get the #'s for using those heads. much boost u goin with?

 

I'm not sure on what type of compression I should be at w head gasket thickness, but if it helps I would like to be at or around 550rwhp

 

Why lower compression for only 550 hp ?

 

That's what I was thinking...8psi is safe with the stock heads. Do you plan on turning up the boost more in the future?

 

Im in the middle of my build.

317s, with PRC dual gold springs, light port work by myself, and gonna do a valve lap on them, then mill them the minimal for cleanup.

Also running a LS9 headgasket .053(iirc)

Jay

 

I prob won't but I wasn't sure if it was a good idea to do since I'll have the heads off

 

I'm not worried about what the heads can handle, I don't want the bottom end to blow apart

 

I think your bottom end is pretty safe on 8psi. With a stock cam, its not like you can wind it to 6500+ rpms or anything. Just my opinion, though.

 

8 psi with stock compression should be just fine as long as you get a good tune. Bob

 

I wouldnt spend any money on heads if your only going to be making 8psi IMO

 

Changing the heads wont make the bottome end stronger ?

If anything lower you compression will only make you low end power suckier when off boost

 

[QUOTE=BigRich954RR;13445994]Changing the heads wont make the bottome end stronger ?

I know that. I think u misunderstund. I'll just stay w the stock compression

 

If you can find a decent set of 243s, I'd swap to those if you have the funds and since you said you'd already have your stock heads off. That's my plan for this winter...blower cam, meth, and maybe some 243s if I can get a set for a decent price.