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.
Ultra Pro Magnumâ„¢ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums but they also take Stud mount Rocker performance, stability and value to a whole new level. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion and increases durability. Featuring Oversized trunnions, precision-sorted needle bearings and hardened Roller tips for the ultimate in performance and dependability. Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.
Ultra Pro Magnumâ„¢ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums but they also take Stud mount Rocker performance, stability and value to a whole new level. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion and increases durability. Featuring Oversized trunnions, precision-sorted needle bearings and hardened Roller tips for the ultimate in performance and dependability. Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.
- Ford V8 Boss 302, 351C, 429-460 - 7/16" Stud - 1.7 Ratio
- Investment cast 8650 chromemoly body and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia. Unique black oxide exterior finish helps prevent corrosion and increases durability.
- Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.
- Feature Oversized trunnions, precision-sorted needle bearings and hardened Roller tips.
- Lifetime Warranty - So strong that we guarantee the Rocker bodies against breakage for life. For use with up to 850 lbs of open spring pressure.
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 |
| Attributes | |
| Amazon ASIN | B003HGFPCC |
| ASIN | B003HGFPCC |
| C.A.R.B. E.O. Number | N/A |
| 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. Exemption Reason | N/A |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Country of Origin (Primary) | US |
| Emission Code | Legal US |
| Engine Family | Ford Boss 302, 351C, 429-460, Ford Boss 302, 351C, 429-460 |
| Engine Make/Size | Ford 351C, Ford 429-460, Ford Small Block Boss 302 |
| Harmonized Tariff Code (Schedule B) | 8409914000 |
| Hazardous Material Code | N |
| Life Cycle Status Code | Available to Order |
| Maximum Valve Spring Open Pressure | 850, 850 |
| NAFTA Preference Criterion Code | B |
| Ratio | 1.7 |
| Rocker Arm Material | 8650 Chromemoly Steel, 8650 Chromemoly Steel |
| Rocker Arm Ratio | 1.7, 1.7 |
| Rocker Arm Series | Ultra Pro Magnum, Ultra Pro Magnum |
| Rocker Stud Diameter | 7/16, 7/16 |
| SDR Required Flag | N |
| SDS Sheet Number | N/A |
| Stud Size | 7/16 |
| GTIN | 00036584196204 |