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COMP Cams K31-601-8 Mutha' Thumpr Hydraulic Roller Cam K-Kit Ford Engine Camshaft Kit - 235/249 221-302

(Ford Mustang 1964-95, Thunderbird 1977-81, 1983-88, 1991-93, Maverick 1971-77, Galaxie 500 1963-72, Fairlane 1963-70, Torino 1968-74 + 44 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

K31-601-8
4 reviews
Sale Price

$1,230.01

Estimated ship date Saturday, November 21

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Product Details

The COMP Cams K31-601-8 Mutha' Thumpr Hydraulic Roller Camshaft K-Kit delivers aggressive performance for Ford 221-302 small block engines. This complete camshaft package is designed to produce a strong choppy idle with excellent throttle response and power gains throughout the RPM range, making it ideal for street/strip applications and muscle car restorations.

Complete K-Kit Includes:

  • Hydraulic roller camshaft with 235/249 duration profile
  • Hydraulic roller lifters engineered for durability
  • High-performance valve springs for increased RPM capability
  • Steel retainers and valve locks
  • Valve stem seals for proper oil control
  • Timing chain set for precise cam timing
  • Assembly lube for proper break-in
  • Installation instructions and COMP Cams decals

The Mutha' Thumpr series is known for its distinctive exhaust note and strong performance characteristics. This kit provides everything needed for a complete cam swap, eliminating the guesswork of component matching. Perfect for enthusiasts seeking that classic hot rod sound with modern hydraulic roller reliability in their Ford small block engine.

Products specifications

Fits

Ford Mustang 1964-95, Thunderbird 1977-81, 1983-88, 1991-93, Maverick 1971-77, Galaxie 500 1963-72, Fairlane 1963-70, Torino 1968-74, Mustang II 1975-78, Falcon 1963-70, Galaxie 1963-67, Gran Torino 1972-74, LTD 1965-86 + 39 more models

Advertised Exhaust Duration

311

Advertised Intake Duration

291

Basic Operating RPM Range

2,200-5,900

Engine Family

Ford 221, 260, 289, 302 c.i. 8 Cylinder (1963-1995)

Exhaust Valve Lift

0.526

Intake Valve Lift

0.54

Exhaust Duration at .050 inch Lift

249

Camshaft Material

Austempered Ductile Iron

Kit Type

K-Kit - Complete Kit

AMAZON ASIN

B005H89WXG

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

Lifter Type

Hydraulic Roller

Intake Duration at .050 Inch Lift

235

Cam Type

Hydraulic Roller

Lifters Included

Yes

LOBE SEPARATION

107

Valve Springs Included

Yes

Usage

Street/Strip

Camshaft Series

Thumpr

Surprisingly quick and easy.

Best prices online for a locker and pretty fast shipping too!

Quick turn around on my order. Best price around and reasonable shipping and handling. Done deal.

Very great service. I purchased a set of jba headers and hotchkin sway bar for my 2004, gto. I must say lowest pricing I found. Thanks!

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