Originally posted by Dan Nixon:
Derek, if I were going to pull the heads and mod them I would look into the 6 oil return (instead of 4) 2.5 heads (2002+??) I think David Z first mentioned this. If confirmed a 6 oil return head may mean less oil pooling in head = less oil starvation. Anybody have info on this?


The problem being that the blocks are different for the newer 6 hole return, i.e. the return hole we have to plug for 3L hybrids. Put a 6 hole return head on a 5 hole return block and you'd be spilling oil everywhere, LOL!


http://www.bnmotorsports.com "And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy my CEG brothers. And you will know I am the Moderator when I lay my vengeance upon you."