BB Chevrolet

Chevrolet - Big Block - Hydraulic Flat Tappet Camshaft - Grind #H-274-8-B Download and Print your Cam Specification Card (PDF) - Click Here Clay Smith Cams recommends degreeing your Camshaft in on the #1 Intake using the Lobe Centerline Method. Find...

280 Advertised Duration 231 Duration @.050 108 Lobe Center Lift Base on Rocker Ratio 1.7  = .535 Gross Lift   Computer-Controlled Compatible: No Valve Springs Required:Yes Low vacuum, canister or pump...

290 Advertised Duration 236 Duration @.050 108 Lobe Center Lift Base on Rocker Ratio 1.7  =  .535 Gross Lift     Low vacuum, canister or pump recommended  Computer-Controlled Compatible: No Valve Springs...

Hydraulic Flat Tappet Camshaft - Big Block Chevy Advertised Duration .274 Advertised Duration @ .050  .224 Lobe Center : 110 Valve Lift with Factory Rocker Arm Ratio 1.7 =  .485 Intake & Exhaust  14" of...

300 Advertised Duration 244 Duration @.050 108 Lobe Center Lift Base on Rocker Ratio 1.7  = .552 Gross Lift 1.8 = .585 Gross Lift     Computer-Controlled Compatible: No Valve Springs Required:Yes Always Check Valve...

Hydraulic Flat Tappet Camshaft - Big Block Chevy Advertised Duration .274 Advertised Duration @ .050  .224 Lobe Center : 112 Valve Lift with Factory Rocker Arm Ratio 1.7 =  .485 Intake & Exhaust  14" of...

Advertised Duration  :264  Duration at .050 : 214  Lobe Center : 110  Lift Base on Rocker Ratio 1.7    .500 Gross Lift Always Check Valve to Piston Clearance  Always Install...

280 Advertised Duration 238 Duration @.050 108 Lobe Center Lift Base on Rocker Ratio 1.7  = .485 Gross Lift   Low vacuum, canister or pump recommended  Always Check Valve to Piston Clearance  Always Install New Lifters...