ANDREWS TC CAMS, TW55 / .550 INCH

.550" valve lift. Set includes two chain-driven camshafts. A cam drive installation kit, which includes a gear cover gasket, cam bearings, and retaining ring, can be ordered separately as S&S 503593. Cams can be run with stock hydraulic lifters. 88–103-inch engines. 9.8 to 10.2 CR. Maximum torque and horsepower at higher RPM ranges. Use high-lift springs. 2,600–6,200 RPM. Note: Owners of 1999 Twin Cams must separately purchase the splined 00–06-style driven gear (503575 Andrews). 00–06 models can reuse the stock 34-tooth driven gear. Note: When using 99–06 chain-drive cams for higher-lift applications, it is recommended to upgrade to gear drive or convert to the 06-and-up hydraulic chain tensioners.

Fits: > 99–06 Twin Cam (excl. 2006 Dyna)