To give you the GM part number you need to make 9:1 with 64cc heads, its 12361371.

This is the piston that is found in the 602 and also the 350-330 HO.

Would you like to tell me p/n 12361371 is a "stock" part for metrics and 2nd gen cameros?

Or would you like to tell me p/n 12361371 is identical to real stock pistons found in these cars?

Lets stop being silly, get back to common parts that really are "stock" so we stop spending a fortune trying to run each other down.

Better yet, give me your pick...

Small Block Chevy Piston Part Numbers 
GM P/N ENGINE CR/Chamber CC Dome Type Pin Type  Material Usage
12514101  350  8.5:1/76cc  Dish  P  Cast  350/190HP 
-  9.1:1/64cc  -  -  -  350/285HP
-  -  -  -  -  Crate motor
12361371  350  9.1:1/64cc  Dish  P  Cast  350/300HP Crate motor
10104455  350  9.8:1/58cc  Flat top  P  Hyper  ZZZ 1St design Crate motor 
10181389  350  9.8:1/58cc  Flat top  P  Hyper  ZZZ 2nd design Crate motor
12520264  350  9.1:1/64cc  Flat top  P  Cast  350/300HP
3946876  302  11.0:1/64cc  Dome  F  Forged  '68 to '69 Z-28
3942543  350  11.0:1/64cc  Dome  P  Forged  '69 L46
474192  350  9.0:1/76cc  Dish  P  Cast  350 L82
3989051  350  11.0:1/64cc  Dome  P  Forged  '70 LT1
14011020 350 12.5:1/64cc Dome F Forged  Heavy-Duty/NOTE 1
14011021 350  12.5:1/64cc  Dome F  Forged  Heavy-Duty/NOTE 2
14011026 350 12.5:1/64cc Dome F Forged  Heavy-Duty/NOTE 3
14011027 350 12.5:1/64cc Dome F Forged  Heavy-Duty/NOTE 4

Now how you do it aftermarket, and hit the compression with 64 CC heads..

KB 22CC dish heads give you 8.7:1 with 64cc heads at stock deck height.

Deck the block like any builder is going to do, shave the heads with miniual cleanup and you are going to be at 9:1 WITH A 22CC DISHED PISTION..

Thats what the guys that are crying about the 74cc head rule are doing.

I like the idea of going close to Barrie's rules as that'll allow drivers to visit each track, therefore maybe bringing up more invitationals like the Thunder Car one done this year. Though with the 4 cylinders, not knowing much I won't say much though it should be interesting to say the least.

Its always been 74cc you have never been alowed to run 64cc. I think he means real racing shocks with rod ends because I know Barrie is running them. The 1.5 is an issue its hard to go back with out buying new heads and 1.6 is pennies more than 1.5 and if your engine builder is charging alot for the valve job then shame on him it will usually save a worn out head going to 1.6 And Ross don't argue with me I have built Championship engines.

I ment Barrie is running Stock mount racing shocks last year.