

Comp Cams Rockers, FC 1.8 7/16" Ultra Pro Mag XD
FC, 7/16" Stud/1.8" Ratio, XD Rocker Arms(8)
The Ultra Pro MagnumT XD Rocker Arms are engineered from durable 8650 steel that outlasts and outperforms other inferior knock-off and import rockers. A unique machined billet pushrod seat insert offers exceptional durability. These new stud mount rockers are fully rebuildable and use precision-sorted needle bearings and hardened roller tips to better distribute the load and reduce wear for a longer service life. In addition, 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 optimization for endurance, drag and circle track applications. These rocker arms are so durable that they come with a lifetime guarantee against breakage. Only accept authentic "COMP" logo rocker arms to ensure quality and reliability.
Part #1838-8* - (8) Rockers for Ford V8 Boss 302, 351C, 429-460 - 7/16" Stud - 1.8 Ratio
- Suitable for use with up to 1000 lbs of open spring pressure!
- Billet pushrod seat insert offers exceptional durability
- 8650 steel construction outlasts & outperforms other rockers in accuracy and strength
- Precision-sorted needle bearings better distribute the load and reduce wear for a longer service life
- Advanced FEA & CAD development improve strength & stiffness
- Engineered for use in endurance, circle track and drag race applications with improved strength and durability
- Lifetime Warranty - So strong that we guarantee the rocker bodies against breakage for life!
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1963 - 1974 | Ford | Country Sedan | Base |
| 1963 - 1991 | Ford | Country Squire | Base |
| 1987 - 1991 | Ford | Country Squire | LX |
| 1965 - 1972 | Ford | Custom | Base |
| 1964 - 1977 | Ford | Custom 500 | Base |
| 1975 - 1977 | Ford | Custom 500 | Ranch Wagon |
| 1975 - 1976 | Ford | Elite | Base |
| 1963 - 1970 | Ford | Fairlane | 500 |
| 1966 - 1967 | Ford | Fairlane | 500XL |
| 1963 - 1969 | Ford | Fairlane | Base |
| 1979 | Ford | Fairmont | Elite, Wagon |
| 1978 - 1979 | Ford | Fairmont | Futura, Base |
| 1964 - 1965 | Ford | Falcon | Futura Sprint |
| 1964 - 1970 | Ford | Falcon | Futura, Base |
| 1965 | Ford | Falcon Sedan Delivery | Base |
| 1963 - 1967 | Ford | Galaxie | Base |
| 1963 - 1974 | Ford | Galaxie 500 | Base |
| 1963 - 1964 | Ford | Galaxie 500 | Victoria, Sunliner |
| 1963 - 1970 | Ford | Galaxie 500 | XL |
| 1972 - 1976 | Ford | Gran Torino | Base, Squire |
| 1973 - 1976 | Ford | Gran Torino | Brougham |
| 1974 - 1975 | Ford | Gran Torino | Elite |
| 1972 - 1975 | Ford | Gran Torino | Sport |
| 1975 - 1980 | Ford | Granada | Base, Ghia |
| 1978 - 1980 | Ford | Granada | ESS |
| 1968 | Ford | GT40 | Base |
| 1966 - 1969 | Ford | GT40 | MK III |
| 1965 - 1986 | Ford | LTD | Base |
| 1970 - 1986 | Ford | LTD | Brougham |
| 1975 - 1986 | Ford | LTD | Country Squire |
| 1980 - 1986 | Ford | LTD | Crown Victoria |
| 1986 | Ford | LTD | Crown Victoria LX, Country Squire LX |
| 1975 - 1979 | Ford | LTD | Landau |
| 1985 | Ford | LTD | LX Brougham |
| 1980 - 1982 | Ford | LTD | S |
| 1987 - 1991 | Ford | LTD Crown Victoria | Base, S, LX |
| 1977 - 1979 | Ford | LTD II | Base, S |
| 1977 - 1978 | Ford | LTD II | Brougham |
| 1979 | Ford | LTD II | Landau |
| 1977 | Ford | LTD II | Squire |
| 1971 - 1977 | Ford | Maverick | Base |
| 1975 - 1977 | Ford | Maverick | Grabber |
| 1964 - 2011 | Ford | Mustang | Base |
| 1969 - 1971 | Ford | Mustang | Boss 302 |
| 1971 - 1972 | Ford | Mustang | Boss 351 |
| 1969 - 1970 | Ford | Mustang | Boss 429 |
| 1994 | Ford | Mustang | Convertible |
| 1979 - 1982 | Ford | Mustang | Ghia |
| 1982 - 1983 | Ford | Mustang | GL, GLX |
| 1970 - 1973 | Ford | Mustang | Grande, Mach 1 |
| 1982 - 2011 | Ford | Mustang | GT |
| 1984 | Ford | Mustang | GT-350 20th Anniversary |
| 1995 | Ford | Mustang | GTS |
| 1982 - 1984 | Ford | Mustang | L |
| 1984 - 1993 | Ford | Mustang | LX |
| 1965 - 1970 | Ford | Mustang | Shelby GT-350 |
| 1966 | Ford | Mustang | Shelby GT-350H |
| 1967 - 1970 | Ford | Mustang | Shelby GT-500 |
| 1968 | Ford | Mustang | Shelby GT-500KR |
| 2011 | Ford | Mustang | Shelby, Shelby GT500 |
| 1984 - 1986 | Ford | Mustang | SVO |
| 1993 - 1995 | Ford | Mustang | SVT Cobra, SVT Cobra R |
| 1983 | Ford | Mustang | Turbo GT |
| 1975 - 1978 | Ford | Mustang II | Ghia, Mach 1, Base |
| 1963 - 1974 | Ford | Ranch Wagon | Base |
| 1970 | Ford | Ranch Wagon | Police Cruiser |
| 1977 - 1992 | Ford | Thunderbird | Base |
| 1978 | Ford | Thunderbird | Diamond Jubilee |
| 1984 - 1986 | Ford | Thunderbird | Elan |
| 1985 - 1988 | Ford | Thunderbird | Equipado |
| 1984 - 1985 | Ford | Thunderbird | Fila |
| 1979 - 1983 | Ford | Thunderbird | Heritage |
| 1983 - 1993 | Ford | Thunderbird | LX |
| 1980 | Ford | Thunderbird | Silver Anniversary |
| 1983 - 1988 | Ford | Thunderbird | Sport, Turbo |
| 1991 - 1993 | Ford | Thunderbird | Super Coupe, V8 |
| 1978 - 1981 | Ford | Thunderbird | Town Landau |
| 1971 | Ford | Torino | 500 |
| 1968 - 1976 | Ford | Torino | Base |
| 1969 - 1971 | Ford | Torino | Cobra, Squire |
| 1968 - 1971 | Ford | Torino | GT |
| 1970 - 1971 | Ford | Torino | Super Cobra Jet, Brougham |
| 1980 - 1987 | Lincoln | Continental | Base |
| 1982 - 1987 | Lincoln | Continental | Givenchy |
| 1982 | Lincoln | Continental | Signature |
| 1983 - 1985 | Lincoln | Continental | Valentino |
| 1980 - 1983 | Lincoln | Mark VI | Base |
| 1982 - 1983 | Lincoln | Mark VI | Bill Blass, Signature, Pucci |
| 1982 | Lincoln | Mark VI | Givenchy |
| 1984 - 1987 | Lincoln | Mark VII | Base |
| 1984 - 1992 | Lincoln | Mark VII | Bill Blass, LSC |
| 1984 - 1985 | Lincoln | Mark VII | Versace |
| 1981 - 1990 | Lincoln | Town Car | Base |
| 1982 - 1990 | Lincoln | Town Car | Cartier, Signature |
| 1989 | Lincoln | Town Car | Signature SE |
| 1990 | Lincoln | Town Car | Touring Edition, Executive, Cypress |
| 1977 - 1980 | Lincoln | Versailles | Base |
| 1964 - 1967 | Mercury | Caliente | Base |
| 1986 | Mercury | Capri | 5.0 |
| 1979 - 1983 | Mercury | Capri | Base |
| 1983 | Mercury | Capri | Crimson Cat |
| 1979 | Mercury | Capri | Ghia |
| 1982 - 1986 | Mercury | Capri | GS |
| 1982 - 1983 | Mercury | Capri | L, Black Magic |
| 1982 - 1985 | Mercury | Capri | RS |
| 1984 | Mercury | Capri | RS Turbo |
| 1971 | Mercury | Colony Park | Base |
| 1987 - 1991 | Mercury | Colony Park | LS, GS |
| 1964 - 1965 | Mercury | Comet | 202, 404 |
| 1964 - 1977 | Mercury | Comet | Base |
| 1967 | Mercury | Commuter | Base |
| 1967 - 1986 | Mercury | Cougar | Base |
| 1969 - 1970 | Mercury | Cougar | Boss 302, Cobra Jet, Boss 429 |
| 1983 - 1992 | Mercury | Cougar | LS |
| 1977 | Mercury | Cougar | Villager, Brougham |
| 1967 - 1993 | Mercury | Cougar | XR-7 |
| 1964 - 1970 | Mercury | Cyclone | Base |
| 1969 | Mercury | Cyclone | CJ |
| 1970 | Mercury | Cyclone | GT |
| 1969 - 1970 | Mercury | Cyclone | Spoiler |
| 1978 - 1989 | Mercury | Grand Marquis | Base |
| 1979 - 1986 | Mercury | Grand Marquis | Colony Park |
| 1987 - 1991 | Mercury | Grand Marquis | GS |
| 1983 - 1991 | Mercury | Grand Marquis | LS |
| 1971 - 1985 | Mercury | Marquis | Brougham, Base |
| 1975 - 1980 | Mercury | Monarch | Base |
| 1975 - 1977 | Mercury | Monarch | Ghia |
| 1976 | Mercury | Monarch | Grand Ghia |
| 1975 | Mercury | Montego | Brougham |
| 1972 - 1973 | Mercury | Montego | GT |
| 1970 - 1976 | Mercury | Montego | MX Brougham |
| 1976 | Mercury | Montego | MX Villager |
| 1968 - 1976 | Mercury | Montego | MX, Base |
| 1970 - 1975 | Mercury | Montego | Villager |
| 1971 | Mercury | Monterey | Custom, Base |
| 1964 - 1967 | Mercury | Villager | Base |
| 1966 - 1967 | Mercury | Voyager | Base |
| 1978 - 1979 | Mercury | Zephyr | Z7, Base |
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Fitment Guaranteed

Comp Cams Rockers, FC 1.8 7/16" Ultra Pro Mag XD
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Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
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You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.


