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COMP Cams 31-601-5 Thumpr 227/241 Hydraulic Flat Camshaft for Ford 221-302

(Ford Mustang 1964-95, Thunderbird 1977-81, 1983-88, 1991-93, Maverick 1971-77, Galaxie 500 1963-72, Fairlane 1963-70, Torino 1968-74 + 40 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

31-601-5
7 reviews
Sale Price

$325.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The COMP Cams Thumpr 31-601-5 camshaft is engineered to deliver the aggressive, hard-hitting exhaust note and race car idle that enthusiasts crave in their muscle cars and street rods. Designed specifically for Ford 221-302 cubic inch engines, this hydraulic flat tappet camshaft features 227/241 degrees of advertised duration for an unmistakable performance sound and substantial power gains.

Key Features:

  • Hydraulic flat tappet design for Ford 221-302 engines
  • 227/241 degree advertised duration creates aggressive idle and performance sound
  • Early intake valve opening and extended exhaust duration for optimum valve overlap
  • Delivers excellent horsepower gains with a broad, usable torque curve
  • Perfect for street performance applications and muscle car builds

Important Installation Requirements:

  • Aftermarket torque converter required for proper drivability
  • Lower gear ratio recommended to keep engine in powerband
  • Reduced idle vacuum requires vacuum canister, pump, or hydroboost for power brake operation

The Thumpr series camshaft is ideal for enthusiasts seeking that classic high-performance idle sound combined with real-world power improvements. This camshaft delivers the aggressive character and throttle response that transforms your Ford small block into a true performance engine.

Products specifications

Fits

Ford Mustang 1964-95, Thunderbird 1977-81, 1983-88, 1991-93, Maverick 1971-77, Galaxie 500 1963-72, Fairlane 1963-70, Torino 1968-74, Mustang II 1975-78, Falcon 1964-70, Galaxie 1963-67, Gran Torino 1972-74, LTD 1965-86 + 35 more models

Advertised Intake Duration

279

Basic Operating RPM Range

2,000-5,800

Grind Number

279TH7

Cam Type

Hydraulic Flat Tappet

Engine Family

Ford 221, 260, 289, 302 c.i. 8 Cylinder (1963-1995)

Exhaust Valve Lift

0.476

Exhaust Duration at .050 inch Lift

241

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL31-601-5

K-Kit Upgrade

K31-601-5

AMAZON ASIN

B0051PP9VE

Usage

Street/Performance

Assembly Lubricant Included

Yes

Camshaft Gear Attachment

1-Bolt

Lifters Included

No

Valve Springs Required

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.

Intake Duration at .050 Inch Lift

227

Advertised Exhaust Duration

296

Intake Valve Lift

0.491

LOBE SEPARATION

107

Camshaft Series

Thumpr

They have the best prices and fast shipping too.

Great price and fast shipping!

Best price I could find! Great customer service kept me informed through the whole order process to insure acuracy since it was being sent directly from the manufacture. Recieved my order in good time, right parts and no damage. Overall very satisfied and will be doing business again in the future.

Very competitive low prices and great product selection. Will definitely look to this vendor when purchasing automotive parts in the future.

Great prices and FAST shipping!! Definitely will buy products here again!

Ordered an EGR bug shield. After a short delay due to the Christmas holiday I called and customer service quickly tracked it down and it showed up a few days later. Best price on the internet!

Although there was a mix up with the shipping on my order customer service was helpful and expedited the solution and made it worth my trouble. I will be keeping Autoplicity in mind for any other parts I might need for my Jeep.

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