These Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.7 ratio, these rockers fit Ford Boss 302, 351C and 429-460 with a 7/16" diameter stud.
Utilizing years of Valvetrain design experience, the latest FEA stress analysis technology, and an exhaustive testing regiment (Dyno and Spintron), the COMP Cams engineering team left no detail to chance. Everything from casting techniques to valve spring clearance was scrutinized to ensure that the new Ultra Pro Magnum rocker arms not only lived up to the lofty standards of their predecessor, but also took stud mount rocker performance, stability, and value to a whole new level.
  • 8650 Chromemoly Steel
  • 29 Percent Stronger Than Pro Magnum
  • Redesigned Steel Stud Mount Rocker
  • Reduced Weight And Greater Strength
  • Increased High RPM Stability
  • Black Oxide Exterior Finish
  • Increased Retainer And Valve Spring Clearances
  • Lifetime Warranty

Application Summary:

Year Make/Model
1969-1974 Ford Country Sedan
1969-1974 Ford Country Squire
1969-1972 Ford Custom
1969-1976 Ford Custom 500
1978 Ford E-100 Econoline
1975-1980 Ford E-250 Econoline
1975-1991 Ford E-250 Econoline Club Wagon
1975-1996 Ford E-350 Econoline
1977-1996 Ford E-350 Econoline Club Wagon
1975-1976 Ford Elite
1979 Ford F-100
1975-1979 Ford F-150
1975-1979 Ford F-250
1983-1996 Ford F-250
1975-1979 Ford F-350
1983-1997 Ford F-350
1970 Ford Fairlane
1970 Ford Falcon
1969-1974 Ford Galaxie 500
1972-1976 Ford Gran Torino
1969-1978 Ford LTD
1969-1971 Ford Mustang
1969-1974 Ford Ranch Wagon
1970-1977 Ford Ranchero
1968-1976 Ford Thunderbird
1970-1976 Ford Torino
1968-1978 Lincoln Continental
1968-1971 Lincoln Mark III
1972-1976 Lincoln Mark IV
1977-1978 Lincoln Mark V
1969-1974 Mercury Colony Park
1969-1976 Mercury Cougar
1970-1971 Mercury Cyclone
1975-1978 Mercury Grand Marquis
1969-1970 Mercury Marauder
1969-1978 Mercury Marquis
1970-1976 Mercury Montego
1969-1973 Mercury Monterey

Additional Information:

Fast Efficient Shipping

Through our distribution network Deliveries can be as fast as Next Day Delivery.
Delivery times vary by destination, tracking information is provided with every purchase.

Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

* Extend your products Manufacturer Warranty

All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.