Z28 rwhp lt1
Aluminum are like a silver. Where else iron heads would blend in with the block. Don't worry though, you have aluminum heads. All F- and Y-body LT1's came with aluminum heads. B- and D-body cars got the cast iron heads.
Otherwise, why would anyone even mention the heads?
Originally Posted by Mikey.
Not to thread jack, but how do you determine which heads you have?
I sure hope he does! I don't know why any one would switch to cast iron! Haha.
To the OP. Understandable why you went with iron heads. 90k miles isn't bad, assuming the engine was well taken care of. Personally, I'd put away for a rebuild and hold off on the cam and work on basic bolt on's and aluminum heads. But that's me.



