.012" (0.30mm) Copper Gasket for 4 Bolt
Zen/CY Copper Gasket 012" for 4 Bolt Engine
Reuseable copper cylinder gasket. Fits Zenoah G240RC / G270RC / G231PUH / G260PUH / G260PU / G231PUM / G260PUM CY F240RC / F270RC engines (i.e. 4-bolt cylinder style engines). Also fits TS 4-bolt billet crankcases. Copper gasket is .012" (0.30mm) thick less thickness of a stock gasket. By installing this gasket, you will increase your squish clearance, allowing higher compression therefore check squish clearance after installing. This stronger gasket resists leaking and blowout.