Comp 31-601-5 Thumpr Camshaft Kit with Performance Lifters, Double Roller Timing Set & Stage 2 Valve Springs and Retainers – 279/296 Dur, .491/.476 Lift – FITS: Ford 260 289 302 SBF Engines
$655.00
Brand: REDLINE ENGINE SUPPLY
Condition: New
– THIS IS A COMPETITION CAM & ENGINETECH CAM KIT BUNDLE 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.
– 31-601-5 THUMPR CAMSHAFT SPECS – Hydraulic flat tappet grind with 279/296 advertised duration, 227/241 duration at .050, .491/.476 lift, and 107° LSA. Produces a deep Thumpr lope and strong mid-range torque from 2,000–5,800 RPM.
– FITS FORD SMALL BLOCK 221–302 ENGINES – Designed for Ford 221, 260, 289, and early 302 V8 engines commonly found in classic Mustangs, Falcons, Fairlanes, hot rods, and performance street builds.
– INCLUDES ENGINETECH PERFORMANCE HYDRAULIC LIFTERS – Quality hydraulic lifters engineered for aggressive flat tappet cam profiles. Provides smooth operation, oil stability, and long-term valvetrain durability.
– TRUE DOUBLE ROLLER TIMING SET INCLUDED – Heavy-duty dual-roller timing chain improves cam timing accuracy, reduces chain stretch, increases durability, and maintains consistent valve events under higher RPM use.
- 2 years warranty
- Delivery time: 1-2 business days
- Free 90 days return
Description
Description
This performance kit includes the Competition Cams 31-601-5 Thumpr hydraulic flat tappet camshaft, Enginetech Performance hydraulic lifters, a true double roller timing set, and Stage 2 performance valve springs with matching retainers. It is designed for Ford small block 221, 260, 289, and early 302 engines that need a major boost in sound, torque, and overall performance. The camshaft features 279 and 296 degrees advertised duration, 227 and 241 degrees duration at .050, .491 and .476 lift, and a tight 107-degree lobe separation angle. These specifications create high valve overlap, producing the aggressive Thumpr lopey idle while improving cylinder scavenging for stronger mid-range torque.
The 31-601-5 operates best from 2,000 to 5,800 RPM, giving small block Ford engines better throttle response, quicker acceleration, and a dramatic improvement in sound and drivability. The cam uses the early Ford firing order of 1-5-4-2-6-3-7-8 for correct engine performance.
The included true double roller timing set offers increased timing accuracy and reduces stretch compared to factory-style timing chains, providing long-term reliability under performance conditions. The Stage 2 performance valve springs and retainers are matched to handle the cam’s lift and ramp rates, preventing valve float and increasing valvetrain control at higher RPM.
This kit is perfect for classic Mustangs, street rods, and small block Ford builds wanting more torque, a deeper idle, stronger mid-range power, and a complete valvetrain upgrade to handle it. If you want a camshaft package that transforms the sound and performance of your Ford small block engine, this Thumpr cam, lifter, timing set, and Stage 2 spring kit is one of the best upgrades available.
Manufacturer: COMP CAMS / ENGINETECH
Model: SBF THUMPR 227/241
Included components: 1-CAMSHAFT 16-LIFTERS 1-TIMING SET 16-SPRINGS & RETAINERS
Warranty: 2 YEAR MANUFACTURER WARRANTY
Additional information
Additional information
| Brand | REDLINE ENGINE SUPPLY |
|---|---|
| Condition | New |
| Manufacturer | COMP CAMS / ENGINETECH |
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