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COMP Cams Thumpr Retrofit Hydraulic Roller Camshafts 12-601-8

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Camshaft, Hydraulic Roller Tappet, Advertised Duration 291/311, Lift .521/.507, Chevy, Small Block, Each

Estimated Ship Date: Monday 12/22/2014 Would you rather pick it up? Select Location

  • Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Brand: COMP Cams

Manufacturer's Part Number: 12-601-8

Part Type: Camshafts

Product Line: COMP Cams Thumpr Retrofit Hydraulic Roller Camshafts

Summit Racing Part Number: CCA-12-601-8

UPC: 036584148395

Cam Style: Hydraulic roller tappet

Basic Operating RPM Range: 2,200-5,900

Intake Duration at 050 inch Lift: 235

Exhaust Duration at 050 inch Lift: 249

Duration at 050 inch Lift: 235 int./249 exh.

Advertised Intake Duration: 291

Advertised Exhaust Duration: 311

Advertised Duration: 291 int./311 exh.

Intake Valve Lift with Factory Rocker Arm Ratio: 0.521 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.507 in.

Valve Lift with Factory Rocker Arm Ratio: 0.521 int./0.507 exh.

Lobe Separation (degrees): 107

Computer-Controlled Compatible: No

Grind Number: 291THR7

Valve Springs Required: Yes

Quantity: Sold individually.

Notes: Designed for engines originally equipped with flat tappet camshaft.

In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

COMP Cams is bringing the musclecar sound back and it's nastier than ever! Let's face it, few things serve to grab our attention at a car show or cruise night more than a car with a thumping high performance idle. In fact, one of the most frequent questions fielded when customers call our tech line is, "what camshaft will give my car that mean-sounding idle?" In an ongoing quest to provide you with the performance and sound you demand, COMP Cams' engineering team proudly introduces the Thumpr series of camshafts. The Thumpr camshafts are a new series of retrofit hydraulic roller camshafts designed for use in engines that were originally equipped with flat tappet camshafts. The lobe profile and grind characteristics of these new Thumpr camshafts use a combination of an early exhaust valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap to maximize the rough-idling characteristics of the cams. They give you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. Thumpr camshafts are available in three different grind profiles; each one will produce a rough, racy exhaust note and impressive amounts of horsepower and torque within a different rpm range. These Thumpr series camshafts feature a cutting-edge hydraulic roller design that delivers a substantial power increase over identical hydraulic flat tappet grinds without sacrificing reliability or ease of maintenance.

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1 Customer Reviews for COMP Cams 12-601-8 - COMP Cams Thumpr Retrofit Hydraulic Roller Camshafts

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Nice Camshaft

Summit RacingSummit Racing Verified Purchase

Very nice camshaft. Great sound!!

0 of 0 found this review helpful.

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Reviewer: RAFAEL from Mexico

Date: July 23, 2014

Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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