Description
Chevrolet - Big Block *Retro - Hydraulic Roller - Grind #HR-294-7-CSR
502 to 509 with 4” stroke an AFR 290 or 305 heads to a max of 6200 rpm.
Welcome to the brotherhood of 600HP on pump gas with over 60ft lbs. This cam will produce over 600HP with a single plane and right at 600HP with an airgap intake. Single plane will make 25 more HP and sacrifice 10 ft lbs of torque.
- Carburetor of choice is a 950HP 4150.
- 1 7/8”s headers are recommended.  
- 850 Idle RPM
*** May Require a Vacuum Canister on some Applications
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 our Best-Selling Degree Kit here.
If you need help degreeing in your camshaft, please feel free to call our Tech Line at 714-523-0530.
*Some parts are not legal for use in California or other states with similar laws/regulations.
Additional Information
Cam Type: |
Hydraulic Rollers |
Make: |
Big Block Chevrolet |
Intake Duration @ .050: |
235 |
Exhaust Duration @ .050: |
235 |
Advertised Intake Duration: |
294 |
Advertised Exhaust Duration: |
294 |
Lobe Center: |
107 |
Valve Lift with Factory Rocker Arm Ratio: |
.559 int / .559 exh |
