Feature●Cam and lifter kit for Big Block Chevy engines●CL-Kit includes cam, lifters, assembly lube, instructions and decals●Hydraulic Magnum: Good for daily driven street machine, works with stock converter, likes headers; 396 needs 3.55-3.73 gear and 1800+ stall; slight rough idle●Valve spring upgrade requiredDescription This Big Block Chevrolet Magnum hydraulic cam and lifter kit is good for a daily driven street machine. It works with the stock torque converter and does well with headers. In 396 applications 3.55-3.73 gears and 1800+ stall are necessary.