My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

COMP Cams 31-600-8 Thumpr Hydraulic Roller Camshaft Ford - 227/241 221-302

(Ford Mustang 1964-95, Thunderbird 1977-81, 1983-88, 1991-93, Maverick 1971-77, Galaxie 500 1963-72, Fairlane 1963-70, Torino 1968-74 + 44 more models)

Part of: COMP Cams Thumpr Hydraulic Roller Camshaft Ford

Other options in this family: COMP Cams 35-600-8 COMP Cams 20-600-9 COMP Cams 34-600-9 COMP Cams 32-600-8 COMP Cams 23-600-9

Manufacturer

Picture for manufacturer COMP Cams

Part Number

31-600-8
5 reviews
Sale Price

$529.63

Estimated ship date Monday, November 23

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams Thumpr 31-600-8 hydraulic roller camshaft delivers aggressive performance with that distinctive lopey idle sound for Ford small block 221-302 cubic inch V8 engines. This camshaft features intake duration of 227 degrees and exhaust duration of 241 degrees, designed to produce excellent low-end and midrange torque while maintaining strong top-end power.

Key Specifications:

  • Intake Duration: 227 degrees at 0.050" lift
  • Exhaust Duration: 241 degrees at 0.050" lift
  • Hydraulic roller design for reduced friction and increased durability
  • Engineered for Ford 221, 260, 289, and 302 cubic inch small block engines
  • Produces characteristic Thumpr choppy idle and aggressive sound
  • Optimized for street performance and muscle car applications

The Thumpr series camshafts are specifically engineered to deliver maximum performance with modern fuel injection systems and automatic transmissions. The hydraulic roller design reduces valvetrain friction while providing superior durability compared to flat tappet cams. This camshaft requires compatible hydraulic roller lifters, timing set, and valvetrain components for proper installation.

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 1963-70, Galaxie 1963-67, Gran Torino 1972-74, LTD 1965-86 + 39 more models

Advertised Exhaust Duration

303

Basic Operating RPM Range

1,900-5,600

Grind Number

283THR7

Engine Family

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

Exhaust Valve Lift

0.515

Intake Valve Lift

0.531

Exhaust Duration at .050 inch Lift

241

Camshaft Material

Austempered Ductile Iron

Cam and Lifter Kit Upgrade

CL31-600-8

K-Kit Upgrade

K31-600-8

AMAZON ASIN

B0046ZHKD0

Usage

Street/Performance

Assembly Lubricant Included

No

Camshaft Gear Attachment

1-Bolt

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.

Lifter Type

Hydraulic Roller

Intake Duration at .050 Inch Lift

227

Cam Type

Hydraulic Roller

LOBE SEPARATION

107

Advertised Intake Duration

283

Camshaft Series

Thumpr

It took exactly a week for the part to be shipped because the part came directly from the supplier. But the price was the lowest around.

Bought a new air intake for my Ford Raptor... Got it in the time they said id get it and for a great price too ...had to call a few times to see the status because it came from the manufacturer wasn't really a big issue customer service was very helpful all the times I talked to them very very happy with my new intake and will be glad to reccommend or use autoplicity again

so far so good

Good price, fast delivery

Easy and had the best price.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy