Comp 31-601-5 Thumpr Camshaft Kit with Enginetech Lifters & True Double Roller Timing Set – Lopey Idle – 279/296 Dur, .491/.476 Lift 107 LSA – FITS: Ford SBF Small Block 221 260 289 302 Engines
$495.00
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.
– TRUE 31-601-5 THUMPR CAMSHAFT SPECS – Hydraulic flat tappet grind with 279/296 advertised duration, 227/241 duration @ .050, .491/.476 lift, and 107° LSA. Built for a hard-hitting, lopey idle and strong torque gains in the 2,000–5,800 RPM range.
– FITS FORD SMALL BLOCK 221–302 ENGINES – Ideal upgrade for classic Ford 221, 260, 289, and early 302 engines in Mustangs, Falcons, Fairlanes, street rods, and custom builds needing real performance and a noticeable sound improvement.
– INCLUDES ENGINETECH PERFORMANCE HYDRAULIC LIFTERS – Precision performance lifters designed for flat tappet applications. Provides stable oil control, smooth operation, and long-term durability with the aggressive Thumpr profile.
– INCLUDES TRUE DOUBLE ROLLER TIMING SET – Heavy-duty double roller timing set provides superior accuracy, reduced stretch, and longer life compared to stock-style timing chains. Ensures correct camshaft timing, better valvetrain stability, and improved long-term performance during street or strip 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, and a true double roller timing set. Designed for Ford small block 221, 260, 289, and early 302 engines, this setup provides a major improvement in sound, torque, throttle response, and overall engine character. The 31-601-5 cam features 279/296 degrees advertised duration, 227/241 degrees duration at .050, .491/.476 lift, and a tight 107-degree lobe separation angle. These specifications create high valve overlap for the signature Thumpr choppy idle while improving cylinder scavenging and mid-range performance. With an operating range of 2,000 to 5,800 RPM, this camshaft works extremely well in street performance and street/strip builds.
The included true double roller timing set ensures precise camshaft timing, reduced chain stretch, and increased durability compared to factory-style timing chains. This provides more stable power delivery and long-term reliability, especially in performance engines. The Enginetech hydraulic lifters are built for high-oil-flow performance use and pair perfectly with this Thumpr profile, providing smooth operation and consistent valvetrain control.
This kit is an excellent upgrade for classic Ford engines needing more torque, improved throttle response, and a more aggressive idle. It is ideal for Mustangs, street rods, and other small block Ford builds. The camshaft uses the early 289 and non-HO 302 firing order of 1-5-4-2-6-3-7-8. For best results, use with upgraded valve springs, headers, intake improvements, proper tuning, and a higher stall converter.
If you want a camshaft that dramatically changes the sound and performance of your Ford small block engine, this Thumpr cam, performance lifters, and double roller timing set combination is one of the most effective upgrades available.
Manufacturer: COMP CAMS / ENGINETECH
Model: SBF THUMPR 227/241
Included components: 1-CAMSHAFT 16-LIFTERS 1-TIMING SET
Warranty: 2 YEAR MANUFACTURER WARRANTY
Additional information
Additional information
| Brand | REDLINE ENGINE SUPPLY |
|---|---|
| Condition | New |
| Manufacturer | COMP CAMS / ENGINETECH |
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