Hey guys,

I just stumbled across a set of al. heads from a ZZ4 along with the roller cam. I am wanting to know if anyone knows the specs on the cam and heads. I am curious if the cam will fit an old style non roller block and the same for the heads. I am thinking that the heads are non vortec and should replace my old iron heads on the turbo engine nicely. Any info is appreciated. I will be surfing the net mean time to see what I find.

Thanks,

chris

If your block has the bolt holes in the lifter valley the cam will...but probably not if it is an older block. The heads will work on your block. If they have 4 intake bolt holes per head they are Vortecs and if they have 6 intake bolt holes per head they are the old style.

The ZZ4 specs off the top of my head are something like...474in 510 out. 208/219 @.050"

Thanks for the info. This is about what I found on the net. I might would have sprung for the heads, but the 58cc chambers are just too smallf for my setup.

Chris