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If youre looking to build a fast, track-ready 103 and this kit eliminates the guess work. Kit includes CNC-Ported Factory Cylinder Heads with high performance valve springs, match- ing high-compression forged aluminum 10.5:1 pistons, SE-259E cams for higher lift for a given duration, Perfect- Fit Pushrods to accommodate the higher cam lift and a 58mm throttle body with High Flow Injectors to feed the beast. Kits for Twin Cam 96 models include Big Bore cylin- ders, and Twin Cam 103 kit uses the Original Equipment 103 cylinders. The kit also includes high-performance clutch spring and sprocket retention hardware to put the power to the ground. Kit includes top end gaskets. Installation requires separate purchase of Cam Service Kit P/N 17045-99D and Drive Gear Retention Kit P/N 25566-06.
Note
Fits Harley-Davidson Dyna & Softail 12-17 models equipped with Original Equipment 103ci Twin Cam engine. Installation requires separate purchase of Cam Service Kit P/N 17045-99D and Drive Gear Retention Kit P/N 25566-06.
