COMP CAM 11-601-8 MUTHA THUMPR 235/249 Retro Fit Camshaft w/ HP Link Bar Lifters | 9 Keyway Billet Steel Timing (Tor/Brg) | LIFT .558″/.542″ | FITS Chevy BBC Big Block 396 402 427 454 | Rough Idle
$999.00
Brand: REDLINE ENGINE SUPPLY
Condition: New
– THIS IS A COMP CAM & REDLINE USA 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.
– COMPETITION CAMS 11-601-8 “MUTHA’ THUMPR” SPECS – Hydraulic roller cam with 291°/311° advertised duration, 235°/249° @ .050 and .558″/.542″ lift on a tight 107° LSA. Built for big-block Chevy engines needing serious airflow, torque and attitude.
– REDLINE PERFORMANCE LINK-BAR HYDRAULIC ROLLER LIFTERS – Heavy-duty link-bar design provides stable roller tracking, strong lubrication control and long-term durability with high-lift, high-duration cam lobes.
– DOUBLE ROLLER 9 KEYWAY BILLET STEEL TIMING KIT (TOR/BRG) – Heat-treated billet gears and a dual-roller chain maintain precise cam timing, reduce stretch and ensure consistent valve events even at high RPM and under heavy load.
– .558″/.542″ HIGH LIFT = HUGE AIRFLOW INCREASE – The aggressive lift pushes the valves deep into the high-velocity airflow zone, dramatically improving intake charge and exhaust flow. Expect faster throttle response, harder acceleration and real horsepower gains.
- 2 years warranty
- Delivery time: 1-2 business days
- Free 90 days return
Description
Description
This complete Competition Cams 11-601-8 performance package delivers aggressive sound, powerful mid-range torque and the unmistakable Thumpr attitude for Chevy 396–454 big block engines. The kit includes the Competition Cams 11-601-8 Mutha’ Thumpr hydraulic roller camshaft, Redline Performance link-bar hydraulic roller lifters and a billet steel double roller timing set engineered for maximum durability and timing stability.
The 11-601-8 camshaft features .558″/.542″ lift, 291°/311° advertised duration, 235°/249° duration @ .050 and a tight 107° LSA. These specs dramatically increase valve motion, allowing the engine to breathe deeper and make more power. The high lift places the valves deep in the heads’ most efficient flow region, while the long duration ensures strong cylinder filling through the entire mid-range. The 107° lobe separation creates heavy overlap, producing the aggressive, sharp-edged Thumpr idle that big-block enthusiasts love.
To support this cam’s aggressive profile, the kit includes a billet steel double roller timing set with hardened gears and a dual-roller chain. This prevents timing stretch, stabilizes cam phasing and ensures accurate valve events for consistent torque and horsepower production. Redline Performance link-bar hydraulic roller lifters complete the valvetrain, offering stable roller tracking, improved oil control and long-term reliability under the cam’s high-lift demands.
Designed for street/strip big block Chevy engines with upgraded heads, headers and proper tuning, this kit delivers stronger mid-range power, deeper sound, quicker throttle response and a more exciting driving experience. If you want your Chevy 396–454 to hit harder, sound meaner and perform stronger—this is the cam and lifter package to choose.
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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