ANDREWS Cam Set - TW31S - Chain Drive - Twin Cam - Harley-Davidson '99-'06 - 288131

Andrews Products is recognized world wide and throughout the Motor Sports community as an industry leader.

• Andrews Products grind its cams using computer-aided cam design capabilities. This superior technology gives the utmost in both performance and reliability. Only the best alloy steel billets and heat treating processes are used. The power in a Harley Twin Cam engine is completely released only when superior Andrews computer-designed high- performance cams are installed. Cams come with new bearings (1 roller and 1 ball) and thrust washers. Andrews recommends using their steel cam drive sprocket H11-120 and crankshaft cam drive sprocket H14-175 (must be purchased separately).

TW31S Grind Cams

• Bolt-in cam for motors with 95 inches and 9.8 to 10.2 compression ratio
• Lower TDC lift for easy installation
• Similar to TW37 with different timing (2000-5600 rpm power range
• Can be used with stock valve springs and tappets

NOTE: 

• 00-06 model cams use a splined cam drive sprocket. These cams will fit in the 1999 Twin Cam motor, but the splined cam drive sprocket OEM #25716-99 or H11-120 must be used.

NOTE: 

• Installer must check coil bind, valve clearance and valve-to-piston clearance.

Specs