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COMP Cams 01-601-8 Mutha' Thumpr 235/249 Hydraulic Roller Camshaft for Chevrolet Big Block Gen VI

(Chevrolet K2500 1996-2000, Express 3500 1996-2000, C3500 1996-2000, C2500 1996-2000, K3500 1996-2000, K2500 Suburban 1996-99, P30 1996-99 + 11 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

01-601-8
4 reviews
Sale Price

$577.95

Estimated ship date Tuesday, November 24

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Product Details

The COMP Cams Mutha' Thumpr hydraulic roller camshaft delivers an aggressive idle and exceptional performance for street-driven Chevrolet Big Block Gen VI engines. This camshaft features a 235/249 duration profile specifically designed to produce a distinctive lope at idle while maintaining excellent drivability and power delivery throughout the RPM range.

Key Specifications:

  • Intake Duration: 235 degrees at 0.050" lift
  • Exhaust Duration: 249 degrees at 0.050" lift
  • Hydraulic roller design for reduced friction and maintenance-free operation
  • Optimized for street performance and high-performance street/strip applications
  • Engineered specifically for Chevrolet Big Block Gen VI engines
  • Produces signature aggressive idle tone and improved throttle response

Performance Features:

  • Split-duration design maximizes exhaust scavenging for improved cylinder filling
  • Hydraulic roller followers eliminate the need for constant valve adjustment
  • Wide lobe separation angle enhances idle quality and vacuum signal
  • Ideal power range for street performance with excellent mid-range torque
  • Compatible with stock valve springs in most applications

The Mutha' Thumpr series is renowned for delivering that classic hot rod sound without sacrificing street manners. This camshaft works exceptionally well with performance cylinder heads, intake manifolds, and exhaust systems to unlock additional horsepower and torque from your big block Chevy engine. Professional installation and proper valvetrain component selection are recommended for optimal performance.

Products specifications

Fits

Chevrolet K2500 1996-2000, Express 3500 1996-2000, C3500 1996-2000, C2500 1996-2000, K3500 1996-2000, K2500 Suburban 1996-99, P30 1996-99, G30 1996, C2500 Suburban 1996-99; GMC K2500 1996-2000, Savana 3500 1996-2000, C3500 1996-2000 + 6 more models

Advertised Exhaust Duration

311

Advertised Intake Duration

291

Basic Operating RPM Range

2,200-5,900

Grind Number

291THR7

Exhaust Valve Lift

0.542

Intake Valve Lift

0.557

Exhaust Duration at .050 inch Lift

249

Camshaft Material

Austempered Ductile Iron

Engine Family

Chevrolet GEN VI 454 and 502 c.i. 8 Cylinder (1996-1999)

Cam and Lifter Kit Upgrade

CL01-601-8

K-Kit Upgrade

K01-601-8

Assembly Lubricant Included

No

Lifters Included

No

Valve Springs Required

Yes

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

No

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

Camshaft Gear Attachment

3-Bolt

Lifter Type

Hydraulic Roller

Intake Duration at .050 Inch Lift

235

Cam Type

Hydraulic Roller

LOBE SEPARATION

107

Usage

Street/Strip

AMAZON ASIN

B005H89P6U

Camshaft Series

Thumpr

I ordered a set of inner tie rods for my car from Autoplicity and found their prices to be the lowest online for the brand I was looking for. Items were ship out in 2 business days from the original manufacturer. Shipping prices were kind of on the expensive end considering the package size and weight so if Autoplicity adjust their shipping prices to be more competitive, I think their service and pricing would be hard to beat!

Wow talk about FAST shipping...I placed the order...and the door bell rang for delivery!!! The electronic points and coil when in the FJ 4o in just a few minutes and work perfectly...THANKS so much! Larry in Montana

Great pricing and quick shipping. I'll be using them again for sure.

Best place to find good products for cheap. I just got a jet programmer for almost $100 below the normal price. I also appreciate the fact that they gave me a call to make sure I was the one ordering.

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