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 K92-602-5 Big Mutha' Thumpr 227/241 Hydraulic Flat Tappet Camshaft Kit for Buick 350

(Chevrolet Corvette 1973-77, Impala 1972-74, Malibu 1973, Chevelle 1972, Monte Carlo 1972-73, Nova 1974; Buick Regal 1973-77, LeSabre 1968-80 + 17 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

K92-602-5
5 reviews
Sale Price

$605.95

Estimated ship date Friday, November 20

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 Big Mutha' Thumpr K92-602-5 is a complete hydraulic flat tappet camshaft kit engineered specifically for Buick 350 engines. This comprehensive K-Kit delivers the aggressive sound and performance characteristics that the Thumpr series is known for, with a 227/241 duration specification designed to produce a pronounced idle and strong mid-range power.

Complete K-Kit Includes Everything You Need:

  • High-performance hydraulic flat tappet camshaft with 227/241 duration profile
  • Hydraulic lifter set matched to camshaft specifications
  • Performance valve springs designed for proper cam operation
  • Valve spring retainers and locks
  • Valve stem seals for reliable oil control
  • Timing chain set for precise cam timing
  • Assembly lube for proper break-in procedure
  • Installation instructions and COMP Cams decals

The Big Mutha' Thumpr series combines the deep, aggressive idle quality enthusiasts demand with real-world street performance. This kit is ideal for muscle car restorations, street performance builds, and applications where distinctive sound meets reliable street manners. The hydraulic flat tappet design provides excellent durability for street use while the complete kit format ensures all components are properly matched for optimal performance and longevity.

Products specifications

Fits

Chevrolet Corvette 1973-77, Impala 1972-74, Malibu 1973, Chevelle 1972, Monte Carlo 1972-73, Nova 1974; Buick Regal 1973-77, LeSabre 1968-80, Century 1972-77, Skylark 1968-76, Riviera 1977-78, Electra 1976-80, Centurion 1972-73 + 12 more models

Advertised Intake Duration

295

Basic Operating RPM Range

2,500-6,400

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.502

Intake Valve Lift

0.517

Intake Duration at .050 Inch Lift

243

Exhaust Duration at .050 inch Lift

257

Engine Family

Buick 350 c.i. 8 Cylinder (1968-1980)

Camshaft Material

Cast Iron

Kit Type

K-Kit - Complete Kit

AMAZON ASIN

B005H89URY

Assembly Lubricant Included

Yes

Lifter Type

Hydraulic Flat Tappet

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

Lifters Included

Yes

LOBE SEPARATION

107

Valve Springs Included

Yes

Usage

Street/Strip

Advertised Exhaust Duration

313

Camshaft Series

Thumpr

I looked around for few months on where to go to purchase JBA headers for my 01 Tundra. I came across Autoplicity and their prices were untouchable. I even called to speak with a sales representative and he gave me a discount code for my purchase. I would highly recommend doing business and plan on doing more business with them.

Great site. Easy to locate items and they have the best prices! I will be using this site for all my custom parts.

Prompt shipment, I got everything under 5 days even if part of my order was drop shipped (in stock items arrived in 2 days). Good communication, would do business again in a heartbeat.

I received my ARP head studs as described and on time with zero problems, and cheaper than anywhere else.Will use again!!!

Best price I could find anywhere. Almost 10% less than my typical sources and the item shipped in less than 24 hrs.<br>

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