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 K08-602-8 Big Mutha' Thumpr Hydraulic Roller Camshaft K-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

K08-602-8
6 reviews
Sale Price

$1,518.95

Estimated ship date Sunday, November 22

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 K08-602-8 Big Mutha' Thumpr is a complete hydraulic roller camshaft K-Kit designed specifically for OE roller-equipped Small Block Chevy engines. This aggressive cam delivers the signature Thumpr sound with a lopey idle while providing strong mid-range to top-end power gains, making it ideal for street performance applications where maximum sound and performance are desired.

Camshaft Specifications:

  • Advertised Duration: 243°/257° (Intake/Exhaust)
  • Hydraulic roller lifter design for OE roller blocks
  • Aggressive lobe profile produces distinctive loping idle
  • Optimized for street performance and maximum throttle response
  • Designed for Small Block Chevy OE roller applications

Complete K-Kit Includes:

  • Hydraulic roller camshaft
  • Hydraulic roller lifters
  • Valve springs engineered for cam profile
  • Valve spring retainers
  • Valve locks
  • Valve stem seals
  • Timing chain set
  • Assembly lube
  • Installation instructions and COMP Cams decals

This comprehensive kit provides everything needed for a complete camshaft installation, eliminating the guesswork of component matching. The Big Mutha' Thumpr series is engineered for enthusiasts who want aggressive sound characteristics combined with proven street performance in their OE roller Small Block Chevy engine.

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

319

Advertised Intake Duration

299

Basic Operating RPM Range

1,900-5,600

Engine Family

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

Exhaust Valve Lift

0.519

Intake Valve Lift

0.533

Intake Duration at .050 Inch Lift

243

Exhaust Duration at .050 inch Lift

257

Camshaft Material

Austempered Ductile Iron

Kit Type

K-Kit - Complete Kit

AMAZON ASIN

B001S1XUQG

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

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

Good price

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 experience, good price, item arrived within 4 days of purchase, would do business with again in future !

Autoplicity had the best price on the plug wires I wanted. I also found their shipping to be fair and their site easy to navigate. Will definitely do business with again.

By far the lowest price i've seen on the web for what i have been trying to get, the Injen SRI for my juke. Great price fast shipping! Ill buy all my car stuff here from now on.

Easy order placement, fast shipment

Share icon
Return Policy
Returns are easy at THMotorsports

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