My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

COMP Cams K01-601-8 Mutha' Thumpr 235/249 Hydraulic Roller Cam K-Kit for Chevrolet Big Block

(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

K01-601-8
6 reviews
Sale Price

$1,623.95

Estimated ship date Monday, November 23

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams Mutha' Thumpr K01-601-8 is a complete hydraulic roller camshaft kit engineered for Chevrolet Big Block Gen VI engines seeking aggressive idle and strong performance. This kit delivers the signature Thumpr sound with a 235/249 degree duration profile, providing excellent throttle response and solid mid-range power gains while maintaining street drivability.

Complete K-Kit Includes:

  • Hydraulic roller camshaft with 235/249 duration specification
  • Hydraulic roller lifters designed for BBC applications
  • Performance valve springs matched to cam profile
  • Valve spring retainers and locks
  • Valve stem seals for proper valve guide sealing
  • Timing chain set for precise cam timing
  • Assembly lube for proper break-in
  • Installation instructions and COMP Cams decals

Key Features:

  • Hydraulic roller design eliminates break-in procedure concerns
  • Aggressive lope idle characteristic for muscle car sound
  • Optimized for street/strip applications with automatic transmissions
  • Compatible with stock torque converters and rear-end gearing
  • All components matched and tested for optimal performance

This all-in-one kit provides everything needed for a complete camshaft upgrade, eliminating guesswork in component matching. The Mutha' Thumpr series is specifically designed for enthusiasts who want maximum sound and performance without sacrificing reliability or requiring extensive supporting modifications.

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

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)

Kit Type

K-Kit - Complete Kit

AMAZON ASIN

B005H89WMC

Assembly Lubricant Included

No

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

Lifter Type

Hydraulic Roller

Intake Duration at .050 Inch Lift

235

Cam Type

Hydraulic Roller

Lifters Included

Yes

Timing Chain and Gears Included

Yes

LOBE SEPARATION

107

Valve Springs Included

Yes

Usage

Street/Strip

Camshaft Series

Thumpr

Valve Stem Seals Included

Yes

product just as described, received in 3 days

I paid for 2nd day shipping and 5 days later they were shipped out. So, I should receive my rotors in a full week from when I paid for 2 day shipping. I called customer service and they discounted the shipping rate to ground service. At least they were polite and helpful in the phone.

great so far

Great prices will shop here again.

Excellent on-line merchant with outstanding customer service and the best prices on equipment and shipping. Highly reccomended!

Good prices and easy ordering process (order #18003). The only issue that I had was after placing the order, completing the entire process, I received three emails stating that "We noticed that you started checking out on our site, but didn't quite finish the process". After calling customer service, they ensured me that the order was complete. Since then, I receive the same email(3 emails at a time) on a daily basis. Just a little annoying, but easy enough to delete.

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy