Genuine COMP CAM 12-601-4 Mutha Thumpr 235/249 & High-Performance Lifters Kit FITS Chevrolet SBC 283 327 350 400 5.7 5.7L
$385.00
Brand: REDLINE ENGINE SUPPLY
Condition: New
– THIS IS A COMP 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.
– THIS LISTING WILL INCLUDE:
– 1)AUTHENTIC COMP CAM 12-601-4 MUTHA THUMPR 235/249 HYDRAULIC CAMSHAFT – High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
– 16) ENGINETECH HIGH-PERFORMANCE HYDRAULIC LIFTERS
– The “Mutha” of All Idles (107 LSA): The ultra-tight 107-degree Lobe Separation Angle combined with increased overlap creates a severe, heavy-loping idle. Why Buy It: This is the “nasty” sound everyone chases. It sounds like a full-blown race car is sitting at the stoplight, offering maximum intimidation factor.
Out of stock
- 2 years warranty
- Delivery time: 1-2 business days
- Free 90 days return
Description
Description
If the standard Thumpr isn’t loud enough for you, it’s time to step up to the Competition Cams 12-601-4 Mutha Thumpr Camshaft. This is the camshaft for the guy who wants his Small Block Chevy (265-400ci) to sound like a dedicated drag car, period. While the original Thumpr is aggressive, the “Mutha” takes it to a whole new level of intimidation. Designed by the engineers at Competition Cams to deliver a barely-tamed, heavy-loping idle, this cam ensures that when you pull into a cruise-in or a gas station, you are the loudest, meanest-sounding vehicle on the lot.
Let’s look at the numbers that create this monster. The 12-601-4 features a significantly increased duration profile of 235 intake and 249 exhaust @ .050, with a valve lift of .489”/.476”. By combining this long exhaust duration with the signature Competition Cams 107-degree Lobe Separation Angle (LSA), you get incredible exhaust scavenging and a power band that screams from 2,200 to 6,100+ RPM. This isn’t a low-end towing cam; this is a mid-to-high RPM street/strip powerhouse designed to make massive horsepower in modified 350s and 383 Strokers.
How does it feel? It feels raw and violent. The idle isn’t just choppy; it shakes the whole car. It sends a clear message that you have serious horsepower under the hood. On the street, once you get past 2,500 RPM, the Mutha Thumpr pulls relentlessly hard all the way to the redline. Critical Tech Note: Because of the aggressive duration and higher RPM power band, this cam requires a higher stall torque converter (2,500+ RPM stall recommended) and rear-end gears (3.23 to 3.73+) to drive properly on the street. It is not for stock converters!
Why choose the Mutha Thumpr? Because you want the ultimate combination of sound and fury. Competition Cams developed this grind specifically for hot rodders who want the audio profile of a high-compression pro-touring engine without the expense of solid rollers or high-maintenance race parts. You get the legendary durability of a Competition Cams hydraulic flat tappet with a sound profile that is absolutely unmatched in the industry. Don’t just be heard—be felt. Install the Mutha Thumpr and dominate the street.
Manufacturer: COMP CAMS / ENGINETECH
Model: MUTHA THUMPR
Included components: 1-CAMSHAFT 16-LIFTERS
Warranty: 2 YEAR MANUFACTURER WARRANTY
Additional information
Additional information
| Brand | REDLINE ENGINE SUPPLY |
|---|---|
| Condition | New |
| Manufacturer | COMP CAMS / ENGINETECH |
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