cylinder shim set .090" for 94mm bug cylinders Empi
Part number:
21-7490
Your cost:
$12.00
Description:
cylinder shim set of 4 .090".
For 94mm bug cylinders. Set your deck with these. The more shims you use the lower your compression ratio. Empi
This engine builders note: I recommend the .090 thick copper racing head gasket over this .090 thick steel cylinder base shim. Bring the piston as far up in the cylinder as you can and get your same clearance in the combustion chamber by doing this. This lets the combustion process take place in the combustion chamber NOT in the cylinder. The more combustion that happens in the combustion chamber the more free horsepower you get.
For 94mm bug cylinders. Set your deck with these. The more shims you use the lower your compression ratio. Empi
This engine builders note: I recommend the .090 thick copper racing head gasket over this .090 thick steel cylinder base shim. Bring the piston as far up in the cylinder as you can and get your same clearance in the combustion chamber by doing this. This lets the combustion process take place in the combustion chamber NOT in the cylinder. The more combustion that happens in the combustion chamber the more free horsepower you get.
Availability:
Ships within 4-7 business days
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