ANDREWS, CHAIN DRIVE CAM SHAFT SET TWA31S/.510" 512393 and use the same connectors

and use the same connectors as the stock black box it replaces

less heat build-up and a strong starting capacity

redesigned baffle chamber

Compatible with pre-83 type bajonet type gas caps

standard length is 1" longer than stock

ANDREWS, CHAIN DRIVE CAM SHAFT SET TWA31S/.510" 512393 and use the same connectors. 510" valve lift. Set includes two chain driven camshafts. A cam drive installation kit, that 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. Great cam for motors with 95 inches and 9. 8 to 10. 2 CR. Lower TDC lift for easy installation. Similar to TW37 with timing setup for higher compression. Stock springs OK. (24005600 RPM). Note: Owners of 1999