Description
Chevrolet - Big Block - Hydraulic Rollers Cam - Grind #HR-9202-7-CSR
BBC 477 to 496 with 4.25” stroke with OEM 188 or 990’s ProMaxx or RHS 320s.
For those of you that go old school and want to use the legendary GM Square Ports this is your cam. Welcome to the brotherhood of BBC that make 600HP and 600#/ft on pump gas!
- Max rpm 5800-6200.
- This cam will also work with the listed aftermarket aluminum heads.
- Single plane intake would be your best choice and you will not sacrifice any torque.
- Carburetor of choice is a 950HP 4150.
- 2” 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: |
233 |
Exhaust Duration @ .050: |
243 |
Lobe Center: |
107 |
Valve Lift with Factory Rocker Arm Setting: |
.620 int / .600 exh |
