High Lift Cam Edelbrock 2204: Rollin' Thunder Hydraulic Roller Camshaft For 1987-Later SBC 283-400 Small Block Chevy Cam These roller tappet cams reduce friction and virtually eliminate break-in problems. Rollin' Thunder Hydraulic Roller Camshaft1996-Later Chevy 500 Gen V & VI.632''/.648'' Lift308°/315° Adv. Duration1500-6500 RPM Range Basic operating RPM range is between 1, 500 6, 500 RPM Edelbrock Rollin' Thunder Camshaft #2204 is designed for 283-400 Chevy V8 engines from 1987-Later (Non LT1/Gen III) and produces optimum torque from the... The Edelbrock Performer RPM Hydraulic Roller Camshaft is designed for street high-performance and racing applications. Rollin' Thunder Camshaft for Chrysler 383-400-440 V8 Intake valve lift with factory rocker arm is 0., 539 and exhaust valve lift is 0., 548., Fit type: Vehicle Specific