The S&S CYCLE 510 G Gear Drive Camshaft Kit is engineered for twin‑cam street engines, delivering a balanced intake and exhaust profile that enhances mid‑range torque while maintaining smooth idle characteristics. Built on the 510 Series grind, the kit features a gear‑driven timing system that ensures precise cam timing and reduced wear compared to chain or belt drives. The package includes both intake and exhaust camshafts, each stamped with the exact lift and duration specifications required for optimal performance in street‑style riding.
Key performance parameters are: intake lift of 0.510 in. with a 238° duration, opening at 20° and closing at 38°, and a lobe centerline of 99°. The exhaust side matches the intake lift at 0.510 in., with a 252° duration, opening at 52° and closing at 20°, and a lobe centerline of 106°. Exhaust lift at TDC is 0.178 in., while intake lift at TDC is 0.187 in., providing a smooth transition between intake and exhaust events. These precise angles and lifts are designed to optimize airflow and combustion efficiency for street‑mounted engines.