Copper Cylinder Gasket for 2-Bolt RC Engines

$7.50

Clear

High-compression, reusable thin copper cylinder gasket. Copper gasket is .005″ (.15mm) thick – stock gasket is .020″ (0.50mm)thick. Installing this gasket reduces the squish clearance in your engine – usually the easiest way to increase the power and reliability of a small 2-stroke engine. You should experience a noticeable improvement in low-end torque and throttle response as well as slightly increased top-end RPMs. DDM recommends using 95 octane or higher fuel after installing this gasket.

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CA317 

This gasket is .012″ (.30mm) thick – stock gasket is .020″ (0.50mm) thick. Installing this gasket reduces the squish clearance in your engine – usually the easiest way to increase the power and reliability of a small 2-stroke engine. You should experience a slight improvement in low-end torque and throttle response as well as slightly increased top-end RPMs. DDM recommends using 95 octane or higher fuel after installing this gasket.
Note: Be sure to check your squish clearances when using this gasket. Failure to maintain proper squish clearance can result in the piston hitting the top of the cylinder, severely damaging or destroying your engine.

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CA318
This copper gasket is .040″ (1mm) thick, double the thickness of a stock gasket. By installing this gasket, you will increase your squish clearance, allowing the installation of stroker crankshafts for increased engine displacement. This stronger gasket resists leaking and blowout.

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CA319
Reuseable copper cylinder gasket. This copper gasket is .020″ (0.50mm) thick, just like stock gasket. This stronger gasket resists leaking and blowout.

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CA320
Copper gasket is .005″ (.15mm) thick – stock gasket is .020″ (0.50mm)thick. Installing this gasket reduces the squish clearance in your engine – usually the easiest way to increase the power and reliability of a small 2-stroke engine. You should experience a noticeable improvement in low-end torque and throttle response as well as slightly increased top-end RPMs. DDM recommends using 95 octane or higher fuel after installing this gasket.

Note: CY27RC motors require 2 stacked gaskets for proper clearance. CY29RC engines and engines with stroker cranks installed will likely need even more. Be sure to check your squish clearances when using this gasket. Failure to maintain proper squish clearance can result in a severely damaged or destroyed engine.

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These copper gaskets will not fit on the GP290 cylinder/crankcase with the 40mm boss. To use on the wider skirts, the gasket will need to be manually enlarged to fit on the cylinder.