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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
New Mounting Bolt # CM-9807-10
• Universal design works with factory and aftermarket front end
* Replaces OEM # 21990-80
Fits Twin Cam 1999-2017 with Aftermarket Rocker Support Plates
Keith Black Pistons KB292.030 +.030" Dome Top Pistons w/8.2:1 Compression Ratio for Sportster 72-85 w/1000cc Engine New Mounting Bolt # CM-9807-10Features & Benefits: * Bore = 3. 218in. * Stroke = 3. 812in. * Fits Iron Head Sporty. * 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 # 22255 83 Tech Tips: * 8. 2: 1 Compression Ratio with 110cc Head Chamber Volume. * Follow Ring End Gap & Piston to
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