The Edelbrock Rollin' Thunder camshaft #2261 is specified for 396–502 Mark IV and Gen V Big‑Block Chevy engines (1967–1995) to produce stronger low‑end and mid‑range torque while maintaining smooth idle. It pairs with Performer manifolds for use up to roughly 5,500 rpm and includes lifter and assembly lube with instructions. Not suitable for 1965–66 big blocks running a grooved rear cam journal; use with a high‑stall torque converter and stock‑ratio rocker arms only.
Edelbrock BBC Hydraulic Roller Cam