What heads for my 402
#21
The stage IIIs are fine, he will just need to put some sealant on the rocker bolts so no oil gets leaked into the runners, they flow well according to their chart on their site. IMO they are good "cheap" performance head when compared to the numbers put up by ETP, AFR, etc who are 2200+
#22
well about an hour ago I was at the g/f's house layed up in her bed! LOL sorry she is more important.
HAHA but like 1slow said you will be ok. But now your top end is going to be restricted from your manifold. Need to kiss the truck manifold good bye.
HAHA but like 1slow said you will be ok. But now your top end is going to be restricted from your manifold. Need to kiss the truck manifold good bye.
Thread
Thread Starter
Forum
Replies
Last Post
03regcab sierra
INTERNAL ENGINE MODIFICATIONS
2
Sep 9, 2015 02:02 PM
sauldgold
GM Engine & Exhaust Performance
3
Jul 23, 2015 02:15 PM



