| Description: |
cylinder shim set of 4 .030".
For 90.5 & 92mm bug cylinders. Set your deck with these. The more shims you add, the lower your compression ratio. Empi
Allow 4 days to ship, please.
This engine builders note: I recommend the .040 thick copper racing head gasket over this .030 thick steel cylinder base shim. Bring the piston as far up in the cylinder as you can and get your clearance in the combustion chamber by doing this. The more combustion process that takes place in the combustion chamber NOT in the cylinder, adds free horsepower. |
