Sale Pending they have about 10k but look brand new. They have PRC 660" dual valve springs. Not really desperate to sell. But there just going to be sitting here a while before I can do anything with them. So I figured Id see if any of you need them. $900 plus shipping + PP fees (if thats how you want to pay)

 

Sorry about me asking but don't know much about performance , can you tell me what HP difference will these heads have compared to my stocks.

 

I think the average is about 40-45 over stock heads

 

Also, it'll bump your CR in a 5.3 to 10.75:1 ... you have no idea how bad I want to send you money, maybe if you still have these in a few weeks, I'll give in.

 

if i still had a 5.3 or a 6.0 you'd be my new best friend.
good luck with the sale, thats a BADASS set of heads! Truckshop runs those.

put them on LS1tech too those car guys would love those heads

 

I need to do some looking to make sure I understand them on a 6.0 I understand they will work but the larger bore is not a problem with these heads? This is an lq4 so how high will this push the compression. I'm very interested I just need to make sure this is something I can live with. This is not my dd.

 

I think the ol work truck has a 5.3 doesn't it? Don't neglect that one just because its in a 94 model. lol. Il try tech if I dont get any action on here.

 

No the larger bore is no problem. Im guessing on a lq4 the CR would be around 10.5-1 with these heads and stock gaskets. Someone correct me if Im wrong. You can ask about anyone on this forum and they will tell you these heads have been proven on a lq4. With a good cam you shouldn't have any problem hitting the 400/400 mark.

 

Bump ! For a bad *** set of heads they would go great on an lq4 , wish you would of put them up a month ago i would been all over them!

 

Combustion chamber size? I assume 65ish cc?