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• Patented visor lock system
• 30% more pressure gear volume over stock
Description for Mini 22° Air Cleaner Kit - Chrome
210mm Rim Diameter: 17 Sold in Units: Each Standard or Heavy Duty: Standard Duty Stem: TR-4 Valve: Center Valve Warehouse Part Number: M2552410
250 bore* Sold per cylinder/piston
Keith Black Pistons KB297.STD Standard Dome Top Pistons w/8.3:1 Compression Ratio for Big Twin 78-84 w/1340cc Shovelhead Engine • Patented visor lock systemFeatures & 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. * Replaces OEM # 21990 80 Tech Tips: * 8. 3: 1 Compression Ratio with 117cc Head Chamber Volume. * Follow Ring End Gap & Piston to Cylinder Clearances as per the