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COMP Cams CL08-601-8 Mutha' Thumpr 235/249 Hydraulic Roller Cam and Lifter Kit for Small Block Chevy

(GMC G2500 1987-95, Yukon 1992-95, K1500 1988-95, C1500 1988-95, K2500 1988-95, Jimmy 1987-91, C3500 1988-95, K2500 Suburban 1992-95 + 89 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

CL08-601-8
6 reviews
Sale Price

$857.95

1 left at this price

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Product Details

The COMP Cams Mutha' Thumpr CL08-601-8 is a high-performance hydraulic roller camshaft and lifter kit designed specifically for OE roller small block Chevrolet engines. This aggressive cam delivers the signature Thumpr sound with excellent mid-range torque and throttle response, making it ideal for street performance applications where you want that aggressive idle and strong acceleration.

Key Specifications:

  • Advertised Duration: 235° Intake / 249° Exhaust
  • Duration at .050": 218° Intake / 230° Exhaust
  • Valve Lift: .525" Intake / .525" Exhaust (with 1.5 rocker ratio)
  • Lobe Separation Angle: 112°
  • Hydraulic roller design for OE roller blocks
  • RPM Range: 1,600-5,800 RPM

Complete Kit Includes:

  • Hydraulic roller camshaft
  • Hydraulic roller lifters
  • Assembly lube
  • COMP Cams decals
  • Detailed installation instructions

This camshaft is engineered for street performance engines looking for that distinctive choppy idle and strong street manners. The Mutha' Thumpr series is perfect for cruisers and street machines where sound and mid-range performance are priorities. Compatible with stock torque converters and rear gears, though optimal performance is achieved with 2,400-2,800 RPM stall converters and 3.73+ rear gears.

Products specifications

Fits

GMC G2500 1987-95, Yukon 1992-95, K1500 1988-95, C1500 1988-95, K2500 1988-95, Jimmy 1987-91, C3500 1988-95, K2500 Suburban 1992-95, K3500 1988-95, C2500 1988-95, K1500 Suburban 1992-95, G25/G2500 Van 1987-95, C1500 Suburban 1992-95 + 84 more models

Advertised Exhaust Duration

311

Advertised Intake Duration

291

Basic Operating RPM Range

1,900-5,600

Engine Family

Chevrolet 305-350 c.i. 8 Cylinder O.E. Roller (1987-1998)

Intake Valve Lift

0.522

Kit Type

Cl-Kit - Cam and Lifter Kit

Exhaust Valve Lift

0.509

Exhaust Duration at .050 inch Lift

249

Camshaft Material

Austempered Ductile Iron

AMAZON ASIN

B002EE8MI2

Assembly Lubricant 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.

Gaskets Included

No

Camshaft Gear Attachment

3-Bolt

Locks Included

No

Lifter Type

Hydraulic Roller

Intake Duration at .050 Inch Lift

235

Cam Type

Hydraulic Roller

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

LOBE SEPARATION

107

Usage

Street/Strip

Valve Stem Seals Included

No

Camshaft Series

Thumpr

The items that I was looking for were easy to find.

Autoplicity had the best price that I could find. The product was drop shipped from the factory and the time estimate that Autoplicity said was correct.

Nice company...Products are significantly cheaper than others and fast shipping.

Great Pricing (lowest i can find anywhere) and Quick Shipping, Product has no damage from shipping! Thank you Autoplicity!

Great prices on all there products and shipping was fast and easy!! Customer service even better I would recommend these ppl to anyone

Best price for brake pads on the web! Great product! Happy with this purchase

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