Wanted to get some input on them as far as flow comparison over stock 5.3 heads and what to pay for a set?

 

I don't think the classifieds are the best place for this question, but maybe you'll get better feedback in the internal engine mods section.

 

Hmmm didn't realize I posted it in the classifieds but thank you for telling me and that'll explain no responses yet

 

They flow as well as the 243 or 799 heads, just have bigger chambers, flow better then any of the 5.3 4.8 heads. Both the SS trucks and other 6.0's received the 317's other then pre early 01 6.0's. On a 5.3 engine they will drop the compression a bit( not a wise choice unless your stuffing it with a ton of boost)

SIDE NOTE that cam in your sig has you have the wrong duration numbers listed.

 

Thanks for the advise...also did I fix it