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COMP Cams K92-601-5 Mutha' Thumpr 227/241 Hydraulic Flat 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

K92-601-5
14 reviews
Sale Price

$637.95

Estimated ship date Sunday, November 22

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Product Details

The COMP Cams Mutha' Thumpr K92-601-5 is a complete camshaft installation kit designed specifically for Buick 350 cubic inch engines. This hydraulic flat tappet camshaft delivers an aggressive 227/241 duration profile that produces the signature Thumpr lope at idle while providing strong mid-range torque and horsepower gains for street performance applications.

Camshaft Specifications:

  • Advertised Duration: 227°/241° (intake/exhaust)
  • Hydraulic flat tappet design for reliable street performance
  • Aggressive lope idle with excellent throttle response
  • Optimized for street/strip applications with automatic or manual transmissions
  • Requires aftermarket converter with 2,200-2,800 RPM stall (automatic transmission)

Complete K-Kit Includes:

  • Mutha' Thumpr camshaft engineered for Buick 350 engines
  • Hydraulic flat tappet lifters (16 pieces)
  • High-performance valve springs with matching seat pressure
  • Steel retainers for reliable valve train operation
  • Valve locks (keepers) for secure retainer installation
  • Valve stem seals to prevent oil consumption
  • Timing chain set with gears for precise cam timing
  • Assembly lube to protect components during initial break-in
  • COMP Cams decals and detailed installation instructions

This all-in-one kit provides everything needed for a complete camshaft upgrade, eliminating the guesswork of component matching. The Mutha' Thumpr series is ideal for enthusiasts seeking that distinctive performance sound combined with real-world power gains in classic Buick V8 engines. Professional installation and proper break-in procedures are recommended 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 Exhaust Duration

305

Basic Operating RPM Range

2,200-6,100

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.491

Intake Valve Lift

0.506

Exhaust Duration at .050 inch Lift

249

Engine Family

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

Camshaft Material

Cast Iron

Kit Type

K-Kit - Complete Kit

AMAZON ASIN

B005H89UQK

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

Intake Duration at .050 Inch Lift

235

Lifters Included

Yes

LOBE SEPARATION

107

Valve Springs Included

Yes

Usage

Street/Strip

Advertised Intake Duration

287

Camshaft Series

Thumpr

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Good

got what I expected

Item arrived on and was correct part

Parts was on hand, and shipped in a timely manner!! Very positive transaction!!

Quick and hopefully get the part I need.

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Very good price. Super quick delivery. Will def. buy from them again. Highley recomend them

Best price on internet. Local dealer wanted 325 dollars more for exact item. Great place to do business.

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