Founded in 2001 as the first manufacturer of aftermarket, performance billet camshafts for the dirt bike and ATV market. Today Hot Cams manufacturers almost 250 unique camshaft profiles in its Urbandale, Iowa facility. Stage 2 cam: Single-cam engine. Good low-end torque gains across entire RPM range. Excellent top-end power with great over-rev. Detailed Specifications: Exhaust duration (degrees at 1 mm): 254.00. Exhaust lift (mm): 10.00. Exhaust lobe center (degrees): 104.00. Exhaust valve lash (mm): 0.15. Intake duration (degrees at 1 mm): 262.00. Intake lift (mm): 10.00. Intake lobe center (degrees): 115.00. Intake valve lash (mm): 0.13. Notes: Designed specifically for the Hot Rods Stroker Crank and Piston Kit (P/N 4143 and P3001). Uses stock valve springs and rockers.