Heads

DOES ANYONE KNOW IF ALUMINIUM LS1 HEADS WILL FIT ON A 99 VORTEC 350?:cool:

No, I don't think they will. I do think they'll fit the 4.8,5.3, and 6.0 liter vortec engines.

They will, but im not sure if it will cause a port mismatch. If your not sure, get the matching intake.