Keith Black Pistons KB266.STD Standard Dome Top Pistons w/10.5:1 Compression Ratio for Big Twin 84-99 w/Evolution Engine Description for Colony Head Bolt

Description for Colony Head Bolt Kit

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Keith Black Pistons KB266.STD Standard Dome Top Pistons w/10.5:1 Compression Ratio for Big Twin 84-99 w/Evolution Engine Description for Colony Head BoltFeatures & Benefits: * Bore = 3. 498in. * Stroke = 4. 250in. * 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: * 10. 5: 1 Compression Ratio with 80cc Head Chamber Volume. * Follow Ring End Gap & Piston to Cylinder Clearances as per the supplied Manufacturers