carolinaSS

iTrader: (1)

I have a 99 ls1 in my SS and just bought a set of PRC 2.5 5.3 heads and was wanting to know which style bolts I need. I know the 99 ls1 has different length bolts for the heads, but I don't know about the 5.3. And also if anyone has had any problems out of the felpro mls head gaskets? Thanks

conan

iTrader: (5)

The year of block dictates the hardware, heads are the same thickness... You need the Pre-04 bolts or studs.

carolinaSS

iTrader: (1)

Thanks very much, ready to get this build started

01ssreda4

iTrader: (96)

This. Heads have no bearing on the matter.