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COMP Cams K35-601-4 Mutha' Thumpr Hydraulic Flat Tappet Camshaft K-Kit for Ford 351W

(Ford F-150 1981-95, Mustang 1969-95, F-250 1981-95, Bronco 1981-95, Thunderbird 1977-79, F-350 1981-95, Galaxie 500 1969-74, F-100 1981 + 37 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

K35-601-4
12 reviews
Sale Price

$617.95

Estimated ship date Tuesday, November 24

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Product Details

The COMP Cams K35-601-4 Mutha' Thumpr K-Kit is a complete camshaft installation package designed specifically for Ford 351 Windsor small block engines. This aggressive hydraulic flat tappet cam delivers a distinctive performance sound with a 235/249 duration profile that provides excellent low-end torque and that signature "Thumpr" idle.

Complete K-Kit Includes:

  • Mutha' Thumpr hydraulic flat tappet camshaft with 235/249 duration
  • Hydraulic flat tappet lifters matched to camshaft specifications
  • High-performance valve springs designed for cam profile
  • Valve spring retainers and locks
  • Valve stem seals for proper oil control
  • Timing chain set for precise valve timing
  • Assembly lube for proper break-in
  • Installation instructions and COMP Cams decals

This K-Kit eliminates the guesswork of component selection by providing every valve train component needed for a successful camshaft upgrade. The Mutha' Thumpr series is known for its aggressive sound characteristics while maintaining street-friendly drivability. Ideal for muscle car enthusiasts and hot rodders looking to add serious attitude to their Ford 351W-powered vehicle.

Specifications: The 235/249 duration split provides a choppy idle and strong low-to-midrange power delivery. Designed for stock to mildly modified 351 Windsor engines with 9.0:1 or higher compression ratio. Requires aftermarket converter in automatic transmission applications for optimal performance.

Products specifications

Fits

Ford F-150 1981-95, Mustang 1969-95, F-250 1981-95, Bronco 1981-95, Thunderbird 1977-79, F-350 1981-95, Galaxie 500 1969-74, F-100 1981, F-250 Pickup 1981-95, Fairlane 1969, Ranchero 1969-79, Torino 1969-76, F-350 Pickup 1981-95 + 32 more models

Advertised Exhaust Duration

305

Basic Operating RPM Range

2,200-6,100

Cam Type

Hydraulic Flat Tappet

Engine Family

Ford 351W 8 Cylinder (1969-1996)

Exhaust Valve Lift

0.486

Intake Valve Lift

0.501

Exhaust Duration at .050 inch Lift

249

Camshaft Material

Cast Iron

Kit Type

K-Kit - Complete Kit

AMAZON ASIN

B001S1T3LM

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

no comment

Easy to access what i was looking for and in stock and cheap shipping

Very quick and received item earlier than expected.

Arrived as ordered in 3-4 days.

Fast and easy transaction.

Good pricing and fast delivery time.

Easy buy , and good pricing

Easy way to check out, great site

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 !

Great

Easy order placement, fast shipment

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