[hulkbuster]

I am putting the A1 (P29's I guess) in my Z6 block. I'm going to use the A1 rods and stock crank. Maybe a Y8 2 layer head gasket, to raise compression a little. Also going to run the Akmee type R head pack (much love Frank!). Will I be okay with the compression level with that setup, I'm not gonna run anything but 93 oct anyways. Will it be okay? And how much can I mill my head and it be okay to drive everyday?

 

[jheybry]

did you use the comp ratio calc?

w/ a 2layer hg it's > 12.0:1

milling will make it higher and decrease valve to piston clearance. you gots to clay, esp w/ that cam (R = crower stg 3)

 

[BigTuna]

Yummy the 3 C's of allmotor life Cam-Compression-and Clay

 

[hulkbuster]

Damn man, is it really gonna be that high? If so I'll just use a regular oem z6 heat gasket.