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Project1970 · 08-20-2002, 05:35 PM

Vortec heads were introduced in 1996. You'll find them on any GM truck or SUV produced in 1996 or later, but before the current generation of trucks came out.

I don't think there's any mods that need to be done, aside from the fact that you need a new intake manifold to fit the heads, or machinework on the heads to fit standard intakes. One thing to note, they are 64cc heads...I've got some in the mail (my original heads are trashed, not worth the $450 of machine work they need) and it's probably going to bump my compression ratio on my original lower end to about 10.1:1 or so, it appears...should be interesting, heh. Just dumb luck that I happen to have an empty tank in it now, lol...gotta go to 92 octane from now on...

08-20-2002, 05:35 PM	#2
Project1970 14.1 @ 96MPH Join Date: Jul 2001 Location: Mesa, AZ Posts: 2,811	Vortec heads were introduced in 1996. You'll find them on any GM truck or SUV produced in 1996 or later, but before the current generation of trucks came out. I don't think there's any mods that need to be done, aside from the fact that you need a new intake manifold to fit the heads, or machinework on the heads to fit standard intakes. One thing to note, they are 64cc heads...I've got some in the mail (my original heads are trashed, not worth the $450 of machine work they need) and it's probably going to bump my compression ratio on my original lower end to about 10.1:1 or so, it appears...should be interesting, heh. Just dumb luck that I happen to have an empty tank in it now, lol...gotta go to 92 octane from now on... __________________ Project1970 - LS1 Swap Complete!