Machined from 8650 steel with a billet pushrod seat insert, these Ultra Pro Magnum XD rockers can handle up to 1,000 lbs of spring pressure. These 1834 rockers feature a 1.7 ratio for use with 7/16" stud Ford 289, 302 and 351 Windsor.
Built to outlast and outperform in accuracy and strength, the Ultra Pro Magnum XD rocker arms are engineered from durable 8650 steel and include a machined billet pushrod seat insert for a wide range of super accurate ratios. A unique and wide ratio range to fit almost any popular application from 1.5 to 1.8 in 0.5 in. increments for Chevy and 1.6 to 1.73 for various Ford applications is available. These Ultra Pro Magnum XD rockers are fully rebuildable and boast precision-sorted needle bearings and hardened roller tips. And, they work with most diameter springs and retainers. The XD design utilizes advanced FEA and CAD design and development to improve strength, stiffness and MOI(moment of inertia) optimization for drag and circle track applications.
  • 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
1963-1969 Ford Country Sedan
1971-1972 Ford Country Sedan
1963-1972 Ford Country Squire
1987-1991 Ford Country Squire
1965-1967 Ford Custom
1964-1972 Ford Custom 500
1975-1977 Ford Custom 500
1975-1976 Ford Elite
1963-1970 Ford Fairlane
1978-1979 Ford Fairmont
1964-1970 Ford Falcon
1965 Ford Falcon Sedan Delivery
1963 Ford Ford 300
1963-1967 Ford Galaxie
1963-1972 Ford Galaxie 500
1972-1976 Ford Gran Torino
1975-1980 Ford Granada
1966-1969 Ford GT40
1965-1972 Ford LTD
1975-1986 Ford LTD
1987-1991 Ford LTD Crown Victoria
1977-1979 Ford LTD II
1971-1977 Ford Maverick
1964-1973 Ford Mustang
1979 Ford Mustang
1982-1995 Ford Mustang
2011 Ford Mustang
1975-1978 Ford Mustang II
1963-1972 Ford Ranch Wagon
1977-1981 Ford Thunderbird
1983-1988 Ford Thunderbird
1991-1993 Ford Thunderbird
1968-1976 Ford Torino
1980 Lincoln Continental
1982-1987 Lincoln Continental
1980-1983 Lincoln Mark VI
1984-1992 Lincoln Mark VII
1981-1990 Lincoln Town Car
1977-1980 Lincoln Versailles
1964-1967 Mercury Caliente
1979 Mercury Capri
1982-1986 Mercury Capri
1987-1991 Mercury Colony Park
1964-1969 Mercury Comet
1971-1977 Mercury Comet
1967 Mercury Commuter
1967-1969 Mercury Cougar
1975-1981 Mercury Cougar
1983-1988 Mercury Cougar
1991-1993 Mercury Cougar
1964-1970 Mercury Cyclone
1978-1991 Mercury Grand Marquis
1978-1982 Mercury Marquis
1975-1980 Mercury Monarch
1968-1976 Mercury Montego
1964-1967 Mercury Villager
1966-1967 Mercury Voyager
1978 Mercury Zephyr

Additional Information:

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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.