COMP Cams CL12-601-4 287TH7 Mutha Thumpr Flat Tappet Hyd. Camshaft and Lifters Kit for Chevrolet Small Block EnginesMutha' Thumpr; Hyd. Flat Tappet; '58 '98 Chevy Small Block Includes Cam & Lifters Hydraulic Flat Tappet; For '58 '98 262 400 cid Small Block Engines w Flat Tappet Cam High Performance Street Strip Needs 9: 1 Compression, 2500+ Stall, Intake, Gears & Headers Rough Idle

Diameter (in): 5

250" Stroke

Maximizes potential of other popular engine performance upgrades such as cylinder heads

This Dual Valve Spring Kit for LS engines includes carefully matched Dual Valve Springs

ZEX™ Bottle Brackets are a durable and easy to use solution for mounting any 10 lb

Precision Balanced by AMS Racing

simply plug into your cigarette lighter or power port

Kit Contents            Part Number

Advertised Intake Duration: 287

625'' maximum lift

037 thick "type A"

050 Inch Lift 216 Exhaust Duration