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COMP Cams GK35-601-4 Mutha Thumpr Hydraulic Flat Camshaft Kit 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

GK35-601-4
5 reviews
Sale Price

$603.20

Estimated ship date Thursday, November 19

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Product Details

The COMP Cams Mutha Thumpr GK35-601-4 is a complete hydraulic flat tappet camshaft kit engineered specifically for Ford 351 Windsor small block engines. This aggressive camshaft delivers the iconic Thumpr sound with enhanced performance characteristics, featuring 235/249 degrees of advertised duration for a powerful loping idle and strong mid-range torque.

Key Specifications:

  • Advertised Duration: 235° Intake / 249° Exhaust
  • Duration at .050": 207° Intake / 221° Exhaust
  • Valve Lift: .501" Intake / .510" Exhaust (with 1.6 rocker ratio)
  • Lobe Separation Angle: 107°
  • Hydraulic flat tappet design for reliable operation
  • Optimized for street performance and aggressive sound

Complete Kit Includes:

  • Hydraulic flat tappet camshaft
  • Lifters matched to cam profile
  • Valve springs and retainers
  • Camshaft installation components
  • Assembly lubricant

This cam profile is ideal for street machines running 9.0:1 to 10.5:1 compression with 2,000-5,800 RPM operating range. The Mutha Thumpr series delivers exceptional throttle response with the distinctive exhaust note that COMP Cams is known for. Requires aftermarket torque converter (2,400-2,800 stall) for automatic transmissions and 3.55:1 or steeper rear gears 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

Engine Family

Ford 351W 8 Cylinder (1969-1996)

Kit Type

GK-Kit - Cam and Gear Kit

AMAZON ASIN

B002EE733W

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

Locks Included

No

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

Yes

Valve Stem Seals Included

No

Pushrods Included

No

Camshaft Series

Thumpr

Autoplicity had the lowest price by far and shipping was very fast (ordered Wednesday evening, arrived Saturday morning). I will definitely order from Autoplicity again!

Very pleasant order over the phone. Gentleman was smart, cheerful and helpful.

It was simple and easy, now I just want to see my product :)

Autoplicity cares about there customers. I ordered a flash programmer and got to the last page and never got a confirmation of the order. I used the website chat and talked to somebody about it right away. So I ordered again and got a conformation. But both went though. Autoplicity called me next day a.m. to see if I made a mistake. Thanks for letting me know and correcting to one order. Saved me from shipping back a product I dind't need.

Exact product as promised with the best price on the internet. Product shipped fast and had a tracking number to keep me up to date on my order. I would order from again without hesitation and will tell friends.

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