COMP 11-602-8 BIG MUTHA THUMPR 243/257 Retro Fit Camshaft with HP Link Bar Lifters | LIFT: .570″/.554″ | FITS: Chevrolet BBC Big Block 396 402 427 454 | Very Rough Idle
$949.00
Brand: REDLINE ENGINE SUPPLY
Condition: New
– THIS IS A COMPETITION CAM & REDLINE PERFORMANCE CAM KIT ASSEMBLED BY OUR EXPERT ENGINEERS TO CREATE THE HIGHEST QUALITY CAMSHAFT KIT AT AN AFFORDABLE PRICE. EVERY PART IN THIS KIT HAS A HIGH-PERFORMANCE SPEC RATING AND IS GUARANTEED TO BE OF THE HIGHEST OF QUALITY AND PERFORMANCE.
– COMP CAM 11-602-8 BIG MUTHA’ THUMPR 243/257 RETRO FIT ROLLER CAMSHAFT – Retrofit hydraulic roller camshaft for Chevy 396–454 big block engines. Features .570” intake lift / .554” exhaust lift, 243°/257° duration @ .050, 299°/319° advertised duration, 107° LSA, and a 2300–6100 RPM operating range for serious street/strip performance.
– HIGH-PERFORMANCE REDLINE RETRO-FIT ROLLER LIFTERS + LINK BAR – High-strength link-bar lifters engineered for retrofit hydraulic roller applications in big block Chevy engines. Provide improved oil control, reduced friction, and stable high-RPM operation.
– Signature Big Mutha’ Thumpr Idle – Deep, Choppy, and Aggressive Built with a tight 107° LSA and long duration to produce a rough, lopey, hard-hitting idle. Instantly gives your big block the aggressive, high-performance sound that stands out at every stoplight.
– Hard-Hitting Mid-Range Torque and Strong Top-End Power – This cam delivers explosive mid-range torque and excellent high-RPM pull, especially when paired with headers, performance intake, upgraded gears, and a 2800+ stall converter.
- 2 years warranty
- Delivery time: 1-2 business days
- Free 90 days return
Description
Description
Upgrade your big block Chevy with a proven street/strip combination built around the Competition Cams 11-602-8 Big Mutha’ Thumpr hydraulic roller camshaft and Redline Performance link bar hydraulic roller lifters. This kit is designed for builders who want the sound, power, and throttle response that only a Thumpr-series cam can deliver.
The 11-602-8 Big Mutha’ Thumpr is engineered specifically for Chevy 396, 402, 427, and 454 BBC engines and is known for its deep, rough, choppy idle, strong mid-range torque, and powerful top-end pull. With .570” intake lift / .554” exhaust lift, 243°/257° duration @ .050, 299°/319° advertised duration, and a tight 107° LSA, this cam creates the aggressive muscle-car sound customers expect while delivering real, usable performance from 2300–6100 RPM.
This package includes Redline Performance link bar hydraulic roller lifters, offering excellent valvetrain stability, consistent oil control, reduced friction, and high-RPM reliability—exactly what a retrofit BBC roller setup needs. These components are matched to work together, giving your build better airflow, faster acceleration, and improved power throughout the RPM range.
If you’re building a big block Chevy and want a combination that sounds mean, pulls hard, and transforms the character of your engine, this cam and lifter package is the perfect upgrade. Ideal for street/strip builds, muscle cars, hot rods, and BBC-powered classics where sound, attitude, and performance matter.
Manufacturer: COMP CAM REDLINE USA
Model: BBC RETRO-FIT CAMSHAFT KIT
Included components: Guaranteed to fit and meet the specifications of the OE parts being replaced
Warranty: LIFETIME – IF INSTALLED BY A CERTIFIED MACHINIST
Additional information
Additional information
| Brand | REDLINE ENGINE SUPPLY |
|---|---|
| Condition | New |
| Manufacturer | COMP CAM \ REDLINE USA |
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