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COMP Cams K31-600-8 Thumpr Hydraulic Roller Cam K-Kit for Ford Engine Camshaft Kit - 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

K31-600-8
5 reviews
Sale Price

$1,230.01

Estimated ship date Thursday, November 19

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Product Details

The COMP Cams K31-600-8 Thumpr K-Kit delivers aggressive performance for Ford small block 221-302 cubic inch engines with a complete camshaft package ready to install. This hydraulic roller camshaft features a 227/241 duration split designed to produce the signature Thumpr choppy idle and strong mid-range torque characteristics that muscle car enthusiasts demand.

Complete K-Kit Includes Everything You Need:

  • Thumpr hydraulic roller camshaft with 227/241 advertised duration
  • Hydraulic roller lifters engineered to match cam profile
  • High-performance valve springs for increased lift capability
  • Precision-machined steel retainers and valve locks
  • Valve stem seals for proper oil control
  • Timing chain set for accurate cam timing
  • Assembly lube to protect components during initial startup
  • Installation instructions and COMP Cams decals

This K-Kit is specifically engineered for Ford 221, 260, 289, and 302 small block V8 engines, providing a cost-effective solution that eliminates the guesswork of component matching. The hydraulic roller design offers durability and low maintenance compared to flat tappet camshafts, while the Thumpr profile delivers that distinctive performance sound and improved throttle response. Ideal for street performance builds, muscle car restorations, and weekend cruisers seeking that classic hot rod attitude.

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

303

Basic Operating RPM Range

1,900-5,600

Engine Family

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

Exhaust Valve Lift

0.515

Intake Valve Lift

0.531

Exhaust Duration at .050 inch Lift

241

Camshaft Material

Austempered Ductile Iron

Kit Type

K-Kit - Complete Kit

AMAZON ASIN

B0046ZJ9EI

Usage

Street/Performance

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

227

Cam Type

Hydraulic Roller

Lifters Included

Yes

LOBE SEPARATION

107

Valve Springs Included

Yes

Advertised Intake Duration

283

Camshaft Series

Thumpr

so far, so great!

Awesome pricing. Needed Pertonix setup for my wifes 62 Mercury Monterey Convertible S-55.

I found what I needed at a good price and checkout was easy.

Great variety of products offered. Quick shipping.

Great service and packaged really nicely!

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