Specifications
- Brand
- COMP Cams
- Part #
- 11-682-47
- UPC
- 036584084181
COMP Cams Camshaft CB 47S 310B-8
$375.76
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COMP Cams CB 47S 310B-8 camshaft for Chevrolet Big Block 396-454 engines. Drag race 4/7 swap solid flat tappet cam.
Key Features
- Fits Chevrolet Bel Air, Biscayne, Blazer, Brookwood, C10 Pickup, C10 Suburban, C10, C1500, C20 Pickup, C20 Suburban, C20, C2500 Suburban, C2500, C30 Pickup, C30, C3500, Camaro, Caprice, Chevelle, Chevy II, Corvette, El Camino, Estate, G10 Van, G20 Van, G20, G30 Van, G30, Impala, K10 Pickup, K10, and K10 Suburban vehicles.
- This is a solid flat tappet camshaft with a 4/7 swap design.
- It has a duration of 270 degrees at 0.050 inch lift on the intake and 276 degrees at 0.050 inch on the exhaust.
- Designed for drag racing applications in vehicles weighing 2600-3000 lbs.
- Requires 11.5:1+ compression ratio and a 4500+ stall converter.
- Suitable for 427-454 cubic inch engines.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
This COMP Cams CB 47S 310B-8 camshaft is designed for Chevrolet Big Block engines, specifically the 396 to 454 cubic inch displacements. It's a solid flat tappet camshaft featuring a 4/7 swap design, which can help improve exhaust port flow and reduce valve train stress. This cam is a popular choice for drag racing applications, particularly in lighter vehicles around 2600-3000 lbs that have a high compression ratio (11.5:1 or more) and a stall converter of 4500 RPM or higher.
Built for performance, this camshaft is well-suited for larger displacement engines like the 427 and 454. The 270/276 degree duration at 0.050 inch lift is aggressive, aiming to maximize power output at higher RPMs. It's important to note that this specific camshaft is not compatible with 1965-1966 396 Big Block engines that have an oiling groove in the rear journal; for those specific applications, a different camshaft is required.
When considering this camshaft, ensure your engine setup can support its aggressive profile, including adequate fuel delivery, ignition timing, and a robust valve train. It's intended for serious drag racing builds where maximizing horsepower is the primary goal.
Specifications
- Brand
- COMP Cams
- Manufacturer Part #
- 11-682-47
- UPC
- 036584084181
Frequently Asked Questions
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COMP Cams Camshaft CB 47S 310B-8