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Discussion Starter · #1 ·
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?
 

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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)
 

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Discussion Starter · #4 ·
Damn man, is it really gonna be that high? If so I'll just use a regular oem z6 heat gasket.
 
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