Std Flat Top Pistons with 9.1:1 Compression Ratio. Fits Sportster 1986-2003 with Big Bore 883cc to 1200cc Conversion.

$435 $391.50

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SKU: KB410.STD Categories: , ,
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Features & Benefits:-

* Bore = 3.498in.

* Stroke = 3.812in.

* 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.

Tech Tips:-

* Piston is 0.125in. below deck to achieve 9.1:1 Compression.

* Follow Ring End Gap & Piston to Cylinder Clearances as per the suppliedManufacturers Instructions.

* Pull the engine down first & measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders & required pistons.

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