+.020in. Pistons with 8.5:1 Compression Ratio. Fits Big Twin 1941-1979 with 1200cc Engine.

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$343.00 RRP

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Features & Benefits:-

* Bore = 3.457in.

* Stroke = 3.969in.

* Hypereutectic Alloy is a cast 16% silicon content material.

* Perfect for air cooled engines.

* Low thermal expansion rate = tighter piston-to-cylinder clearance.

* Complete kit includes: two pistons, rings, wrist pins and clips.

* Replaces OEM # 22144-55C

* Replaces OEM # 22144-74A

Tech Tips:-

* Follow Ring Eng Gap & Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.