The Ford Racing M-6303-C340 crankshaft is engineered for 302 production and Ford Performance cylinder blocks, making it a reliable choice for performance builds. With a stock rod journal diameter of 2.1232 inches, this crankshaft is designed to work seamlessly with M-6200-D50 "Sportsman" rods (5.40 inches long) and 1.090-inch compression distance pistons in a standard 302 block, resulting in a displacement of 347 cubic inches.
This finished forged crankshaft features strategically placed lightening holes, a rounded clockwise (CW) leading edge, and a tapered trailing edge to enhance performance. The rod and main journals are nitrided and polished, ensuring durability and reduced friction, which is critical in high-performance applications. Note that custom pistons, rods, and balancing are required for optimal performance.
Finished forged construction ensures strength and reliability.
The M-6303-C340 crankshaft is compatible with the following Ford models:
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| Ford Country Squire | 1969-1972, 1987-1991 | Base |
| Ford Country Squire | 1987-1991 | LX |
| Ford E-100 Econoline | 1975 | Base |
| Ford E-100 Econoline | 1975 | Northland |
| Ford E-100 Econoline | 1975 | Chateau |
| Ford E-100 Econoline | 1975 | Custom |
| Ford E-100 Econoline Club Wagon | 1975 | Chateau |
| Ford E-100 Econoline Club Wagon | 1975 | Custom |
| Ford E-100 Econoline Club Wagon | 1975 | Base |
| Ford E-100 Econoline Club Wagon | 1975 | Northland |
| Ford E-150 Econoline | 1991-1996 | XL |
| Ford E-150 Econoline | 1991 | Custom |
| Ford E-150 Econoline | 1992-1996 | Base |
| Ford E-150 Econoline Club Wagon | 1991-1996 | XLT |
| Ford E-150 Econoline Club Wagon | 1991 | XL |
| Ford E-150 Econoline Club Wagon | 1991-1996 | Custom |
| Ford E-150 Econoline Club Wagon | 1992-1996 | Chateau |
| Ford E-250 Econoline | 1991 | XL |
| Ford E-250 Econoline | 1991 | Custom |
| Ford E-250 Econoline Club Wagon | 1991 | XL |
| Ford E-250 Econoline Club Wagon | 1991 | XLT |
| Ford E-250 Econoline Club Wagon | 1991 | Custom |
| Ford F-100 | 1969-1979, 1983 | Base |
| Ford F-100 | 1975-1981 | Ranger |
| Ford F-100 | 1975-1978 | Northland |
| Ford F-100 | 1975-1982 | Custom |
| Ford F-100 | 1975-1981 | Ranger XLT |
| Ford F-100 | 1977 | XLT |
| Ford F-100 | 1978-1981 | Ranger Lariat |
| Ford F-100 | 1982-1983 | XLT Lariat |
| Ford F-100 | 1982-1983 | XL |
| Ford F-100 | 1982-1983 | XLS |
| Ford F-150 | 1975-1981, 1984-1989 | Ranger |
| Ford F-150 | 1975-1978 | Northland |
| Ford F-150 | 1975-1981 | Ranger XLT |
| Ford F-150 | 1975-1992 | Custom |
| Ford F-150 | 1976-1978, 1983-1986 | Base |
| Ford F-150 | 1977, 1983-1984, 1990-1996 | XLT |
| Ford F-150 | 1978-1981 | Ranger Lariat |
| Ford F-150 | 1982, 1985-1992 | XLT Lariat |
| Ford F-150 | 1982-1996 | XL |
| Ford F-150 | 1982-1983 | XLS |
| Ford F-150 | 1993-1995 | Lightning |
| Ford F-150 | 1995-1996 | Eddie Bauer |
| Ford F-150 | 1995-1996 | Special |
| Ford F-250 | 1972-1974, 1977-1978, 1983-1986, 1995 | Base |
| Ford F-250 | 1977-1978, 1980-1982, 1987-1994 | Custom |
| Ford F-250 | 1977, 1983-1984, 1993-1996 | XLT |
| Ford F-250 | 1977-1978, 1980-1981 | Ranger XLT |
| Ford F-250 | 1977-1978 | Northland |
| Ford F-250 | 1977-1978, 1980-1981, 1992, 1994 | Ranger |
| Ford F-250 | 1978, 1980-1981 | Ranger Lariat |
| Ford F-250 | 1982-1996 | XL |
| Ford F-250 | 1982-1983 | XLS |
| Ford F-250 | 1982, 1985-1992 | XLT Lariat |
| Ford F-250 | 1995-1996 | Special |
| Ford F-250 | 1995-1996 | Eddie Bauer |
| Ford F-250 | 1996 | XLT VIP |
| Ford F-350 | 1972-1978, 1980 | Base |
| Ford F-350 | 1975-1978, 1980 | Ranger XLT |
| Ford F-350 | 1975-1978, 1980 | Custom |
| Ford F-350 | 1975-1978 | Northland |
| Ford F-350 | 1975-1978, 1980 | Ranger |
| Ford F-350 | 1977 | XLT |
| Ford F-350 | 1978, 1980 | Ranger Lariat |
| Ford Fairlane | 1968-1969 | Base |
| Ford Fairlane | 1968-1970 | 500 |
| Ford Fairmont | 1978-1979 | Futura |
| Ford Fairmont | 1978-1979 | Base |
| Ford Fairmont | 1979 | Wagon |
| Ford Fairmont | 1979 | Elite |
| Ford Falcon | 1968-1970 | Base |
| Ford Falcon | 1968-1970 | Futura |
| Ford Galaxie 500 | 1968-1972 | Base |
| Ford Galaxie 500 | 1968-1970 | XL |
| Ford Gran Torino | 1972-1974 | Base |
| Ford Gran Torino | 1972-1974 | Squire |
| Ford Gran Torino | 1972-1974 | Sport |
| Ford Gran Torino | 1973-1974 | Brougham |
| Ford Gran Torino | 1974 | Elite |
| Ford Granada | 1975-1980 | Ghia |
| Ford Granada | 1975-1980 | Base |
| Ford Granada | 1978-1980 | ESS |
| Ford LTD | 1968-1972, 1977-1986 | Base |
| Ford LTD | 1970-1972, 1983-1986 | Brougham |
| Ford LTD | 1977-1986 | Country Squire |
| Ford LTD | 1977-1979 | Landau |
| Ford LTD | 1980-1986 | Crown Victoria |
| Ford LTD | 1980-1982 | S |
| Ford LTD | 1985 | LX Brougham |
| Ford LTD | 1986 | Country Squire LX |
| Ford LTD | 1986 | Crown Victoria LX |
| Ford LTD Crown Victoria | 1987-1991 | Base |
| Ford LTD Crown Victoria | 1987-1991 | S |
| Ford LTD Crown Victoria | 1987-1991 | LX |
| Ford LTD II | 1977-1979 | Base |
| Ford LTD II | 1977 | Squire |
| Ford LTD II | 1977-1979 | S |
| Ford LTD II | 1977-1978 | Brougham |
| Ford LTD II | 1979 | Landau |
| Ford Maverick | 1971-1977 | Base |
| Ford Maverick | 1975-1977 | Grabber |
| Ford Mustang | 1968-1973, 1979, 1982-1984, 1994-1995 | Base |
| Ford Mustang | 1968-1970 | Shelby GT-350 |
| Ford Mustang | 1968-1970 | Shelby GT-500 |
| Ford Mustang | 1968 | Shelby GT-500KR |
| Ford Mustang | 1969-1970 | Boss 429 |
| Ford Mustang | 1970-1973 | Mach 1 |
| Ford Mustang | 1970-1973 | Grande |
| Ford Mustang | 1971-1972 | Boss 351 |
| Ford Mustang | 1971 | Boss 302 |
| Ford Mustang | 1979, 1982 | Ghia |
| Ford Mustang | 1982-1983 | GL |
| Ford Mustang | 1982 | GT |
| Ford Mustang | 1982-1984 | L |
| Ford Mustang | 1982-1983 | GLX |
| Ford Mustang | 1983 | Turbo GT |
| Ford Mustang | 1984-1993 | LX |
| Ford Mustang | 1984-1986 | SVO |
| Ford Mustang | 1984 | GT-350 20th Anniversary |
| Ford Mustang | 1995 | GTS |
| Ford Mustang II | 1975-1978 | Base |
| Ford Mustang II | 1975-1978 | Mach 1 |
| Ford Mustang II | 1975-1978 | Ghia |
| Ford Ranch Wagon | 1969-1972 | Base |
| Ford Ranch Wagon | 1970 | Police Cruiser |
| Ford Thunderbird | 1977-1981, 1983-1988, 1991-1992 | Base |
| Ford Thunderbird | 1978 | Diamond Jubilee |
| Ford Thunderbird | 1978-1981 | Town Landau |
| Ford Thunderbird | 1979, 1981, 1983 | Heritage |
| Ford Thunderbird | 1980 | Silver Anniversary |
| Ford Thunderbird | 1983-1988 | Sport |
| Ford Thunderbird | 1983-1988 | Turbo |
| Ford Thunderbird | 1983-1988, 1991-1993 | LX |
| Ford Thunderbird | 1984-1985 | Fila |
| Ford Thunderbird | 1984-1986 | Elan |
| Ford Thunderbird | 1985, 1987-1988 | Equipado |
| Ford Thunderbird | 1991-1993 | Super Coupe |
| Ford Thunderbird | 1991-1993 | V8 |
| Ford Torino | 1968-1974 | Base |
| Ford Torino | 1968-1971 | GT |
| Ford Torino | 1969-1971 | Squire |
| Ford Torino | 1969-1971 | Cobra |
| Ford Torino | 1970-1971 | Brougham |
| Ford Torino | 1970-1971 | Super Cobra Jet |
| Ford Torino | 1971 | 500 |
| Lincoln Continental | 1980, 1982-1987 | Base |
| Lincoln Continental | 1982 | Signature |
| Lincoln Continental | 1982-1987 | Givenchy |
| Lincoln Continental | 1983-1985 | Valentino |
| Lincoln Mark VI | 1980-1983 | Base |
| Lincoln Mark VI | 1982-1983 | Signature |
| Lincoln Mark VI | 1982-1983 | Pucci |
| Lincoln Mark VI | 1982 | Givenchy |
| Lincoln Mark VI | 1982-1983 | Bill Blass |
| Lincoln Mark VII | 1984-1992 | Bill Blass |
| Lincoln Mark VII | 1984-1985 | Versace |
| Lincoln Mark VII | 1984-1992 | LSC |
| Lincoln Mark VII | 1984-1987 | Base |
| Lincoln Town Car | 1981-1990 | Base |
| Lincoln Town Car | 1982-1990 | Cartier |
| Lincoln Town Car | 1982-1990 | Signature |
| Lincoln Town Car | 1989 | Signature SE |
| Lincoln Town Car | 1990 | Cypress |
| Lincoln Town Car | 1990 | Executive |
| Lincoln Town Car | 1990 | Touring Edition |
| Lincoln Versailles | 1977-1980 | Base |
| Mercury Capri | 1979, 1982-1983 | Base |
| Mercury Capri | 1979 | Ghia |
| Mercury Capri | 1982-1986 | GS |
| Mercury Capri | 1982-1983 | L |
| Mercury Capri | 1982-1985 | RS |
| Mercury Capri | 1982-1983 | Black Magic |
| Mercury Capri | 1983 | Crimson Cat |
| Mercury Capri | 1984 | RS Turbo |
| Mercury Capri | 1986 | 5 |
| Mercury Colony Park | 1987 | GS |
| Mercury Colony Park | 1987 | LS |
| Mercury Comet | 1968-1969, 1971-1977 | Base |
| Mercury Cougar | 1968-1969, 1977-1979, 1981, 1983-1986 | Base |
| Mercury Cougar | 1968-1969, 1977-1981, 1984-1988, 1991-1993 | XR-7 |
| Mercury Cougar | 1969 | Boss 302 |
| Mercury Cougar | 1969 | Cobra Jet |
| Mercury Cougar | 1969 | Boss 429 |
| Mercury Cougar | 1977 | Villager |
| Mercury Cougar | 1977 | Brougham |
| Mercury Cougar | 1983-1988, 1991-1992 | LS |
| Mercury Cyclone | 1968-1970 | Base |
| Mercury Cyclone | 1969 | CJ |
| Mercury Cyclone | 1969-1970 | Spoiler |
| Mercury Cyclone | 1970 | GT |
| Mercury Grand Marquis | 1980-1986 | Colony Park |
| Mercury Grand Marquis | 1980-1989 | Base |
| Mercury Grand Marquis | 1983-1991 | LS |
| Mercury Grand Marquis | 1987-1991 | GS |
| Mercury Marquis | 1979-1982 | Brougham |
| Mercury Marquis | 1979-1982 | Base |
| Mercury Monarch | 1975-1980 | Base |
| Mercury Monarch | 1975-1977 | Ghia |
| Mercury Monarch | 1976 | Grand Ghia |
| Mercury Montego | 1968-1974 | Base |
| Mercury Montego | 1968-1974 | MX |
| Mercury Montego | 1970-1974 | MX Brougham |
| Mercury Montego | 1970-1974 | Villager |
| Mercury Montego | 1972-1973 | GT |
| Mercury Zephyr | 1978-1979 | Base |
| Mercury Zephyr | 1978-1979 | Z7 |

Ford Racing was founded in 1901 and is the high-performance division of Ford Motor Company that specializes in performance upgrades for their vehicle lineup. It was also the name used for all of its factory-backed motorsport activity.
Today, the company has changed the name to Ford Performance but had kept that tradition of providing the highest quality of products.
Racing HeritageFord Racing has been actively participating in motorsport racing since the 1900s. They have used this to promote their brand and show the people what their vehicles can do when it comes to performance.
Over the years of racing, they have produced many race winners and track records at the time, but their most memorable success was when they beat Ferrari at their own game during the Lemans 24 hrs race. The event was so successful, that they turned it into a blockbuster.
Performance and Quality in Every ProductEach Ford Racing product is designed to produce the highest performance possible. Being able to work with one of the largest automotive companies in the world has given Ford Racing access to large resources. Their ability to have access to the actual blueprint of the vehicle they are working on allows them to create products that would maximize their full potential.
With state-of-the-art technologies, an army of engineers, and the best design team, they have all the tools other companies could only dream of. This ensures that the company only produces the best.
Purchase Ford Racing Products at Vivid RacingGiven its current stature, Ford would never attach its brand name to a product if it does not meet their high-quality standard. Ford Racing products are built alongside Ford vehicles, making it a direct fit to the stock factory location. They offer performance products ranging from internal engine components, exhaust systems, and more.
If you want to upgrade your Ford, then what better brand can you trust than Ford Racing. Built by Ford for Ford. Visit Vivid Racing and check out their list of products specifically for your requirements.