S&S
S&S, 95" big bore cylinder & piston kit. Black
S&S, 95" big bore cylinder & piston kit. Black
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Black powder coated finish. Nothing beats cubic inches and this is the simplest way to flex Twin Cam muscles. Converts the stock 99-06 Twin Cams from 88" to 95" and also increases compression ratio somewhat. Easy to install without any machining or crankcase splitting. Flywheel re-balancing is not required. Cylinder kits contains two 95" (3-7/8" big bore) cylinders and a 95" pop-up piston set with a 5.3cc pop-up dome; which will give a slight compression ratio increase to approx. 9.7:1 with stock heads.
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Why buy from Forty5°
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Verified compatibility
Every part we ship is checked against your bike's platform, year, and engine. If it doesn't fit, we tell you before you check out.
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Workshop installation
Book a serviceHave us fit it. Book installation at parts intake — same-day on most jobs, master techs only.
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Founder-led aftersales
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