Keith Black Pistons KB297.020 +.020" Dome Top Pistons w/8.3:1 Compression Ratio for Big Twin 78-84 w/1340cc Shovelhead Engine Stability at high speed

Stability at high speed

Dyna Front 2000/2005

• Dimpled for late model controls

3/4” Long by 4

Keith Black Pistons KB297.020 +.020" Dome Top Pistons w/8.3:1 Compression Ratio for Big Twin 78-84 w/1340cc Shovelhead Engine Stability at high speedFeatures & Benefits: * Bore = 3. 518in. * 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. * Replaces OEM # 21992 80 Tech Tips: * 8. 3: 1 Compression Ratio with 117cc Head Chamber Volume. * Follow Ring End Gap & Piston to Cylinder Clearances as per the