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COMP Cams GK35-602-8 Big Mutha' Thumpr 243/257 Hydraulic Roller Camshaft 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

GK35-602-8
8 reviews
Sale Price

$1,665.95

Estimated ship date Saturday, November 28

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Product Details

The COMP Cams Big Mutha' Thumpr GK35-602-8 is a complete hydraulic roller camshaft kit engineered specifically for Ford 351W engines seeking an aggressive idle and strong mid-range to top-end power. This GK-Kit (Garage Keeper Kit) includes everything needed for a complete cam swap, making it ideal for street performance builds and weekend warriors.

Camshaft Specifications:

  • Duration at 0.050": 243°/257° (Intake/Exhaust)
  • Advertised Duration: 289°/307°
  • Valve Lift: 0.575"/0.583" (with 1.6:1 rocker arms)
  • Lobe Separation Angle: 107°
  • Hydraulic roller design for reduced friction and increased durability
  • Signature Thumpr sound with aggressive lope at idle

Kit Includes:

  • Hydraulic roller camshaft
  • Hydraulic roller lifters
  • Timing set
  • Assembly lubricant
  • Valve springs and retainers
  • Pushrods

This cam is designed for engines with 9.0:1 to 10.5:1 compression ratio and works best with 2,500+ RPM stall converters and 3.73:1 or higher rear gear ratios. The Big Mutha' Thumpr delivers excellent throttle response, strong acceleration, and that unmistakable performance sound that turns heads. Requires compatible roller lifter block or retrofit spider.

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

K-Kit Upgrade

K35-602-8

AMAZON ASIN

B002EE8UXY

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

Title

Big Mutha' Thumpr 243/257 Hydraulic Roller Cam GK-Kit for Ford 351W

Best price. Received confirmation of shipment two days after placing order. Hoping to see product soon.

I ordered the wrong product and they have been very helpful in letting me exchange it for th right one

Easy checkout. I'll leave further comment when it arrives.

Very happy with the ease of the sale. Price was the cheapest around also. Thanks Autoplicity!

I spoke with the owner, awesome dude, told me he gets prices NOBODY else can! I just got notification that my items are shipping, so, I cannot review the actual product yet....but as far as pricing goes and communications....excellent! You gotta check this place out!! Jas. (&thanks for the extra incentives!!)

Super fast shipping, in stock, good pricing. Very happy with this order.

I got all of my parts in and where happy with them. The website is about the cheapest around. Something about them really gives me a good feeling. :)

a lot of their parts are the lowest price you can find. they will always be on my list of autopart dealers for every build

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