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COMP Cams 41-602-7 Classic Big Mutha' Thumpr Solid Flat Camshaft for Flathead Ford 239/255

(Ford Custom 1949-52, Country Sedan 1950-53, Ranch Wagon 1950-53, Country Squire 1950-53, F Series 1949-53, Sunliner 1952-53, Victoria 1951-53 + 8 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

41-602-7
5 reviews
Sale Price

$689.95

1 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams 41-602-7 Classic Big Mutha' Thumpr is a high-performance solid flat tappet camshaft engineered specifically for Flathead Ford 239 and 255 cubic inch engines. This camshaft delivers the iconic aggressive lope and deep exhaust note that has made the Thumpr series famous, while providing excellent low-end torque and strong mid-range power for street performance applications.

Camshaft Specifications:

  • Advertised Duration: 243°/257° (Intake/Exhaust)
  • Solid flat tappet design for traditional flathead applications
  • Designed for Flathead Ford 239 and 255 cubic inch engines
  • Produces aggressive choppy idle and strong street performance
  • Optimized lobe profiles for enhanced throttle response
  • Ideal for hot rod and classic restoration projects

This camshaft is perfect for enthusiasts looking to extract maximum performance from their vintage Flathead Ford engine while maintaining excellent drivability. The Big Mutha' Thumpr profile is specifically tuned to work with traditional flathead valve train geometry, providing reliable operation and impressive sound characteristics. COMP Cams manufactures this camshaft using premium materials and precise grinding processes to ensure durability and consistent performance.

Note: Solid flat tappet camshafts require appropriate valve train components, break-in lubricant, and proper installation procedures. Consult COMP Cams specifications for recommended valve springs, lifters, and installation requirements.

Products specifications

Fits

Ford Custom 1949-52, Country Sedan 1950-53, Ranch Wagon 1950-53, Country Squire 1950-53, F Series 1949-53, Sunliner 1952-53, Victoria 1951-53, Crestline 1950-53, Customline 1952-53, Deluxe 1949-51, Ford 1949, Mainline 1952-53 + 3 more models

Advertised Exhaust Duration

315

Lifter Type

Solid Flat Tappet

Exhaust Valve Lift

0.378

Intake Valve Lift

0.382

Basic Operating RPM Range

2,200-4,200

Intake Duration at .050 Inch Lift

243

Exhaust Duration at .050 inch Lift

257

Grind Number

295TS7

Camshaft Material

Cast Iron

Camshaft Series

Classic Thumpr

Engine Family

Flathead Ford (2 Gear) 239, 255 c.i. 8 Cylinder (1949-1953)

Cam Type

Solid Flat Tappet

AMAZON ASIN

B005H89W0Y

Assembly Lubricant Included

Yes

Lifters Included

No

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.

LOBE SEPARATION

107

Advertised Intake Duration

283

ordered 4 cans to prime/paint/clear coat some rims. paint came in 2-3 days (incredibly fast). They forgot a can, i emailed and got a reply within 20 minutes, and the can was on my doorstep the next day. im very impressed

I would def order again from them great price and fast shipping.

Wow the quick service and low prices at autoplicity helped me and made it easy to find which car parts retailer is the best!

Autoplicity had the best price on the Wiseco pistons I needed anywhere. Took a little longer to arrive than I expected but apparently that was due to the pistons being shipped directly from the factory. Otherwise a very good experience overall.

The item I ordered was in stock and was shipped within 24 hours. The purchase process was quick and convenient. The website was easy to navigate. Their prices were the best I could find anywhere. I will definitely purchase from them again in the future. I am pleased with Autoplicity!

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