Std Dome Top Pistons with 10.5:1 Compression Ratio. Fits Twin Cam Twin Cam 2007-2017 with 103ci Engine & Big Bore 96ci to 103ci Conversion. - Keith Black Pistons Seat & S/bar accessories-all models * Stock Length (6

* Stock Length (6

* Proudly Made in the USA

* made from high nickel alloy

What was the first thing JIMS did when we took delivery of our new M8 test bike

* Bearing Kit # ABR-28-1111

Std Dome Top Pistons with 10.5:1 Compression Ratio. Fits Twin Cam Twin Cam 2007-2017 with 103ci Engine & Big Bore 96ci to 103ci Conversion. - Keith Black Pistons Seat & S/bar accessories-all models * Stock Length (6Features & Benefits: * Bore = 3. 875 * Stroke = 4. 375 * Forged 4032 Alloy is an 11% silicon alloy that is formed in a forging press then fully machined * Best resistance to cracking in hi comp performance applications * Require . 001 wider piston to wall clearance * Anti Friction skirt coating. * Complete kit includes: two pistons, rings, wrist pins and clips. Tech Tips: * 10. 5: 1 Compression Ratio with 85cc Head Chamber Volume. * Follow Ring End