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 32-421-8 Magnum Hydraulic Roller Camshaft Ford - 351C 351M 400M

(Ford F-150 1977-81, Mustang 1969-73, F-250 1977-81, Bronco 1978-82, Thunderbird 1977-79, F-350 1977-81, Galaxie 500 1969-74, F-100 1977-79 + 28 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

32-421-8
5 reviews
Sale Price

$529.62

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 Magnum 32-421-8 is a hydraulic roller camshaft engineered specifically for Ford 351 Cleveland, 351 Modified, and 400 Modified V8 engines. This camshaft delivers balanced performance with 215 degrees of advertised duration on both intake and exhaust, making it an excellent choice for street/strip applications seeking improved throttle response and mid-range power.

Key Specifications:

  • Advertised Duration: 215°/215° (Intake/Exhaust)
  • Hydraulic roller design for reduced friction and improved durability
  • Optimized grind for Ford 351C, 351M, and 400M engine families
  • Provides strong mid-range torque with good top-end power
  • Smooth idle characteristics suitable for street use
  • Compatible with stock to moderate compression ratios

Performance Benefits:

  • Enhanced throttle response over stock camshaft
  • Improved horsepower and torque in the 2,000-5,500 RPM range
  • Reduced valve train wear with roller lifter design
  • Maintains good vacuum for power brakes and accessories

This camshaft requires hydraulic roller lifters (sold separately) and is designed to work with stock valve springs in most applications. COMP Cams recommends verifying piston-to-valve clearance and checking all valve train geometry during installation. Ideal for daily drivers, weekend cruisers, and mild performance builds seeking reliable power gains without sacrificing streetability.

Products specifications

Fits

Ford F-150 1977-81, Mustang 1969-73, F-250 1977-81, Bronco 1978-82, Thunderbird 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, E-350 Econoline 1980-81 + 23 more models

Basic Operating RPM Range

1,800-5,000

Grind Number

270HR

Exhaust Valve Lift

0.566

Intake Valve Lift

0.566

Exhaust Duration at .050 inch Lift

215

Camshaft Material

Austempered Ductile Iron

Cam and Lifter Kit Upgrade

CL32-421-8

Engine Family

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

K-Kit Upgrade

K32-421-8

Camshaft Series

Magnum

SK-Kit Upgrade

SK32-421-8

AMAZON ASIN

B000P5GA1I

Assembly Lubricant Included

No

Camshaft Gear Attachment

1-Bolt

Lifters Included

No

LOBE SEPARATION

110

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.

Advertised Intake Duration

270

Lifter Type

Hydraulic Roller

Advertised Exhaust Duration

270

Cam Type

Hydraulic Roller

Usage

Street/Strip

Intake Duration at .050 Inch Lift

215

Good price for parts

I paid for 2nd day shipping and 5 days later they were shipped out. So, I should receive my rotors in a full week from when I paid for 2 day shipping. I called customer service and they discounted the shipping rate to ground service. At least they were polite and helpful in the phone.

great experience, good price, item arrived within 4 days of purchase, would do business with again in future !

By far the lowest price i've seen on the web for what i have been trying to get, the Injen SRI for my juke. Great price fast shipping! Ill buy all my car stuff here from now on.

Easy to use website, would use again. Had the hard to find part I needed.

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