Andrews Products Grinds Its Cams Using a Computer With 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).
TW21 CHAIN DRIVEN CAMS
Bolt-in Cam With More Torque at Low and Middle Rpm Range (1,700-5,200 Rpm)Similar to EV23 for Heavy BikesWork Well With Either Fuel-Injection or CarburetorFits All 1999-2006 Harley Davidson Twin Cam Models (Excludes 2006 FXD)Use With Stock SpringsMade in the USASold as a SetINTAKE
Open (In Degrees): 10Close (In Degrees): 30Duration at .053 (In Degrees): 220Duration at .020 (In Degrees): 255Valve Lift: .498Lift at TDC: .134EXHAUST
Open (In Degrees): 40Close (In Degrees): 8Duration at .053 (In Degrees): 228Duration at .020 (In Degrees): 264Valve Lift: .498Lift at TDC: .121NOTE: 2000-2006 Model Cams Use a Splined Cam Drive Sprocket. These Cams Will Also Fit on 1999 Twin Cam Models ONLY if Either OEM P/N 25716-99 or Andrews P/N 288015 Splined Cam Drive Sprocket Is UsedNOTE: It Is the Installer's Responsibility to Check Coil Bind and All ClearancesNOTE: The Image Displayed Is Representative of Andrews Cams, but May Vary Depending on Your Specific Model.
