Andrews 31G Gear Drive Camshafts - 288131G

• Gear drive uses less engine power to operate and improves valve timing accuracy over stock chain drive camshafts
• Dynamometer comparisons show gains of 4 horsepower over chain drive camshafts
• Can be installed on both carbureted and fuel injected models (exc. 2006 Dyna)
• Smooth idle, broad torque band
• 2200-5800 RPM
• NOTE: Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance
• NOTE: Sold as cams only, inner and outer gear kit and installation kit must be purchased separately
• Intake Opening (degrees): 10
• Intake Closing (degrees): 46
• Exhaust Opening (degrees): 52
• Exhaust Closing (degrees): 8
• Intake Duration (degrees): 236
• Exhaust Duration (degrees): 240
• Intake Lift (in): .510
• Exhaust Lift (in): .510

Instructions