# COMP Cams Rocker Arms FS/FW 1.6 3/8 Ultra 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 Engines with Self Aligning Rockers - 3/8" Stud - 1.6 RatioInvestment 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. This Part Fits: Year Make Model Submodel 1978-1979 Ford Bronco Custom 1978 Ford Bronco Northland 1978-1979 Ford Bronco Ranger XLT 1969-1974 Ford Country Sedan Base 1969-1974 Ford Country Squire Base 1969-1972 Ford Custom Base 1969-1977 Ford Custom 500 Base 1975-1977 Ford Custom 500 Ranch Wagon 1975-1976 Ford Elite Base 1976-1978 Ford F-100 Base 1975-1979 Ford F-100 Custom 1975-1978 Ford F-100 Northland 1975-1979 Ford F-100 Ranger 1978-1979 Ford F-100 Ranger Lariat 1975-1979 Ford F-100 Ranger XLT 1977 Ford F-100 XLT 1976-1978 Ford F-150 Base 1975-1979 Ford F-150 Custom 1975-1978 Ford F-150 Northland 1975-1979 Ford F-150 Ranger 1978-1979 Ford F-150 Ranger Lariat 1975-1979 Ford F-150 Ranger XLT 1977 Ford F-150 XLT 1976-1978,1983-1986 Ford F-250 Base 1975-1982,1987-1992 Ford F-250 Custom 1975-1978 Ford F-250 Northland 1975-1981 Ford F-250 Ranger 1978-1981 Ford F-250 Ranger Lariat 1975-1981 Ford F-250 Ranger XLT 1982-1994 Ford F-250 XL 1982-1983 Ford F-250 XLS 1977,1983-1984,1993-1994 Ford F-250 XLT 1982,1985-1992 Ford F-250 XLT Lariat 1976-1978,1983-1986 Ford F-350 Base 1975-1982,1987-1992 Ford F-350 Custom 1975-1978 Ford F-350 Northland 1975-1981 Ford F-350 Ranger 1978-1981 Ford F-350 Ranger Lariat 1975-1981 Ford F-350 Ranger XLT 1982-1994 Ford F-350 XL 1982-1983 Ford F-350 XLS 1977,1983-1984,1993-1994 Ford F-350 XLT 1982,1985-1992 Ford F-350 XLT Lariat 1970 Ford Fairlane 500 1969-1974 Ford Galaxie 500 Base 1969-1970 Ford Galaxie 500 XL 1972-1976 Ford Gran Torino Base 1973-1976 Ford Gran Torino Brougham 1974-1975 Ford Gran Torino Elite 1972-1975 Ford Gran Torino Sport 1972-1976 Ford Gran Torino Squire 1969-1978 Ford LTD Base 1970-1976 Ford LTD Brougham 1975-1978 Ford LTD Country Squire 1975-1978 Ford LTD Landau 1977-1978 Ford LTD II Base 1977-1978 Ford LTD II Brougham 1977-1978 Ford LTD II S 1977 Ford LTD II Squire 1969-1973 Ford Mustang Base 1971-1972 Ford Mustang Boss 351 1969-1970 Ford Mustang Boss 429 1970-1973 Ford Mustang Grande 1970-1973 Ford Mustang Mach 1 1970 Ford Mustang Shelby GT-350 1969-1974 Ford Ranch Wagon Base 1970 Ford Ranch Wagon Police Cruiser 1970-1978 Ford Ranchero 500 1970-1971 Ford Ranchero Base 1970-1978 Ford Ranchero GT 1970-1978 Ford Ranchero Squire 1968-1978 Ford Thunderbird Base 1978 Ford Thunderbird Diamond Jubilee 1978 Ford Thunderbird Town Landau 1971 Ford Torino 500 1970-1976 Ford Torino Base 1970-1971 Ford Torino Brougham 1970-1971 Ford Torino Cobra 1970-1971 Ford Torino GT 1970-1971 Ford Torino Squire 1970-1971 Ford Torino Super Cobra Jet 1968-1979 Lincoln Continental Base 1968-1971 Lincoln Mark III Base 1972-1976 Lincoln Mark IV Base 1977-1979 Lincoln Mark V Base 1969-1974 Mercury Colony Park Base 1970-1973,1977-1978 Mercury Cougar Base 1970 Mercury Cougar Boss 429 1977 Mercury Cougar Brougham 1970 Mercury Cougar Cobra Jet 1977 Mercury Cougar Villager 1970-1978 Mercury Cougar XR-7 1970-1971 Mercury Cyclone Base 1970-1971 Mercury Cyclone GT 1970-1971 Mercury Cyclone Spoiler 1975-1978 Mercury Grand Marquis Base 1969-1970 Mercury Marauder Base 1969-1970 Mercury Marauder X-100 1969-1978 Mercury Marquis Base 1969-1978 Mercury Marquis Brougham 1975-1976 Mercury Marquis Colony Park 1970-1976 Mercury Montego Base 1975 Mercury Montego Brougham 1972-1973 Mercury Montego GT 1970-1976 Mercury Montego MX 1970-1974,1976 Mercury Montego MX Brougham 1976 Mercury Montego MX Villager 1970-1975 Mercury Montego Villager 1969-1974 Mercury Monterey Base 1969-1974 Mercury Monterey Custom ## Details - **Price:** 645.79 CAD - **Vendor:** COMP Cams - **Type:** Rocker Arms ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 645.79 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - Primary - Logo Image - Logo Image --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/comp-cams-rocker-arms-fs-fw-1-6-3-8-ultra) > Updated: 2026-06-26