GM 60degree '05+ 3500SFI heads

[Berettaspeed]

Just wondering if any guys that work at dealers or junk yards that might be able to get any GM 3500 heads for me. im looking to get some soon. i know sometimes you get a bad bottom end and get the top end if possible. my buddy doesn't work at the dealer anymore so i have no hook ups. LOL

but if anyone could keep an eye out for me. not too many people like to crash these things.

[Poncho]

i thought the older intake was incompatible w/ those heads?

[BAD LS1]

i think he has the 3400 intake setup on it?

[Berettaspeed]

yes i have an 03' 3400. the 3400 block works with the 3500 heads as the intake runners will bolt up. in 2000 they had a new design for 3100s and 3400s which are the same besides the block bore.
the 3500 heads flow better and will lower comprerssion slightly. 9.1:1 instead of 9.6:1

i dunno for sure, but this is the rumor.

[Poncho]

yea I was worried about the intake manifold

[A B4C Z]

IF i come across any ill keep you in mind. What about the 3.9 stuff is that compatable also?