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COMP Cams CL32-602-8 Big Mutha' Thumpr Hydraulic Roller Cam Lifter Kit Ford - 351C/351M/400M

(Ford F-150 1977-81, Mustang 1969-73, F-250 1977-81, Bronco 1978-82, Thunderbird 1972, 1977-79, F-350 1977-81, Galaxie 500 1969-74 + 30 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

CL32-602-8
7 reviews
Sale Price

$835.97

Estimated ship date Thursday, November 19

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Product Details

The COMP Cams Big Mutha' Thumpr CL32-602-8 is a complete hydraulic roller camshaft and lifter kit engineered specifically for Ford 351 Cleveland, 351 Modified, and 400 Modified engines. This aggressive cam delivers the signature Thumpr sound with a lopey idle that commands attention, while providing exceptional mid-range and top-end power for street performance applications.

Camshaft Specifications:

  • Advertised Duration: 243°/257° (intake/exhaust)
  • Hydraulic roller design for reduced friction and increased durability
  • Optimized for modified street engines with performance heads and intake
  • Delivers aggressive sound with improved throttle response

Complete Kit Includes:

  • Hydraulic roller camshaft
  • Hydraulic roller lifters (16)
  • Assembly lubricant for proper break-in
  • Installation instructions
  • COMP Cams decals

The Big Mutha' Thumpr series is designed for enthusiasts who want maximum performance sound combined with street-friendly drivability. This kit provides everything needed for a professional camshaft installation, ensuring proper valve train operation and long-term reliability. Recommended for engines with 9.0:1 or higher compression ratio, aftermarket intake manifold, headers, and adequate exhaust system.

Products specifications

Fits

Ford F-150 1977-81, Mustang 1969-73, F-250 1977-81, Bronco 1978-82, Thunderbird 1972, 1977-79, F-350 1977-81, Galaxie 500 1969-74, F-100 1977-79, Fairlane 1969-70, Ranchero 1969-79, Torino 1970-76, Falcon 1970 + 25 more models

Advertised Exhaust Duration

319

Advertised Intake Duration

299

Basic Operating RPM Range

2,500-6,200

Kit Type

Cl-Kit - Cam and Lifter Kit

Exhaust Valve Lift

0.563

Intake Valve Lift

0.579

Intake Duration at .050 Inch Lift

243

Exhaust Duration at .050 inch Lift

257

Camshaft Material

Austempered Ductile Iron

Engine Family

Ford 351C, 351M-400M 8 Cylinder (1970-1983)

AMAZON ASIN

B005H89S7Q

Assembly Lubricant Included

No

Camshaft Gear Attachment

1-Bolt

Valve Springs Required

Yes

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

Lifter Type

Hydraulic Roller

Cam Type

Hydraulic Roller

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

LOBE SEPARATION

107

Usage

Street/Strip

Valve Stem Seals Included

No

Camshaft Series

Thumpr

Good price, communication good but not great. Shipped promptly.

Ordered a couple of items. The first was a air intake kit. I had put in all my info for my truck and chose one from the list to order. Won't fit. Called to tell them and they asked if I had called manufacturer...ummm no. Said I needed to contact them to verify wrong part. They were closed, so went to website. The part they sent me was a universal fit- for cars, not trucks, but did find right model- $90 more. Called back autoplicity and was told I need to go through email to get an RA# to return wrong part- site says I can call. Been on hold for over 20 mins and still waiting. Hope the Nerf bars I ordered fit! Update- they called me back, got my RA#. Very pleased with how Nick handled things- it was what I expected the first time. He verified the NERF bars will fit and will be changing the website so the universal intake does not show on list for vehicles with larger air outlets. Changing my rating to show my satisfaction with how it was eventually handled.

Lowest prices of what I was looking for and super fast shipping!!

very easy

Great company best prices around and would highly recommend

Product was a good price, fast shipping and great costumer service! will do business again!

"Customer service was very helpful, very good prices. On its way the next day."

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