10" diameter torque converter with 11-7/16" bolt pattern, 2400-2800 RPM Stall
*Bolts must be 3/8-16 x 3/4 to 1 inch in length and only use Grade 8 quality.
- 3/4 Race series converters are built, tested, and proven to support up to 650 HP
- State of the art Spray Welding process is used in select areas. Spray Welding provides clean, strong and consistent fusion while also increasing strength through hardening from higher process temperature
- Each converter is hand-built and inspected in every step of assembly to ensure top of the line quality
- All HAYS converters are internally welded compared to brazing. Testing has shown welding provides longer converter life while also enhancing consistency
- Heavy duty Torrington bearings are used for greater strength and durability
- Stators are chosen with high flow vents and channels to promote cooling in heat producing higher horsepower applications
- Increased horsepower and acceleration due to a weight saving, one application design. Almost all HAYS converters are built for one application to reduce weight compared to a multi-bolt pattern converter.
- 3/4 Race series converters are offered in several different stall speeds for GM, Ford, and Chrysler transmissions
- Industry leading Tech Support Team is available to provide assistance with stall speed selection
Information:
Warning: The 3/4 RACE series converters are NOT designed to be used with Nitrous Oxide or Trans-Brakes
Note: HAYS recommends an external transmission cooler for all Twister 3/4 Race Converters
(A minimum size of 18,000 GVW or 15,000 BTU Rating.)
Note: Stall ranges will vary depending on engine set-up, weight of vehicle, and gear ratio (Please see converter selector in tech resources for more info)
*Bolts must be 3/8-16 x 3/4 to 1 inch in length and only use Grade 8 quality.
Application Summary:
| Year |
Make/Model |
| 1966-1967 |
AC 427 |
| 1967 |
AC 428 |
| 1966-1968 |
AC Shelby Cobra |
| 1978-1994 |
Ford Bronco |
| 1966-1972 |
Ford Custom |
| 1973-1977 |
Ford Custom 500 |
| 1975-1983 |
Ford E-100 Econoline |
| 1975-1983 |
Ford E-100 Econoline Club Wagon |
| 1975-1996 |
Ford E-150 Econoline |
| 1975-1996 |
Ford E-150 Econoline Club Wagon |
| 1975-1996 |
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 |
| 1965-1980 |
Ford F-100 |
| 1982-1983 |
Ford F-100 |
| 1975-1988 |
Ford F-150 |
| 1990-1996 |
Ford F-150 |
| 1968-1996 |
Ford F-250 |
| 1968-1976 |
Ford F-350 |
| 1978-1996 |
Ford F-350 |
| 1966-1969 |
Ford Fairlane |
| 1970 |
Ford Falcon |
| 1966-1967 |
Ford Galaxie |
| 1968-1974 |
Ford Galaxie 500 |
| 1975-1976 |
Ford Gran Torino |
| 1975-1978 |
Ford Granada |
| 1966-1980 |
Ford LTD |
| 1977-1979 |
Ford LTD II |
| 1972-1973 |
Ford M-400 |
| 1967-1973 |
Ford Mustang |
| 1967-1971 |
Ford Ranchero |
| 1975-1979 |
Ford Ranchero |
| 1966-1979 |
Ford Thunderbird |
| 1968-1976 |
Ford Torino |
| 1966-1979 |
Lincoln Continental |
| 1968-1971 |
Lincoln Mark III |
| 1972-1976 |
Lincoln Mark IV |
| 1977-1979 |
Lincoln Mark V |
| 1966-1969 |
Mercury Comet |
| 1966-1968 |
Mercury Commuter |
| 1967-1973 |
Mercury Cougar |
| 1975-1979 |
Mercury Cougar |
| 1966-1971 |
Mercury Cyclone |
| 1975-1980 |
Mercury Grand Marquis |
| 1969-1970 |
Mercury Marauder |
| 1967-1980 |
Mercury Marquis |
| 1966-1968 |
Mercury Montclair |
| 1968-1976 |
Mercury Montego |
| 1966-1974 |
Mercury Monterey |
| 1966-1968 |
Mercury Park Lane |
| Attributes |
| Anti Balloon Plate |
No |
| Anti-Balloon Plate |
No, No |
| Balanced |
Yes, Yes |
| Bolt Circle |
11-7/16", 11-7/16" |
| Bolt Circle Diameter |
11.4375 in. |
| Bolt Circle Diameter (in.) |
11.4375 in. |
| Bolt size |
3/8-16 x 1, 3/8-16 x 3/4 |
| Brand |
Hays, Hays |
| California Proposition 65 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Category |
Transmission |
| Country of Origin (Primary) |
US |
| Crank Pilot Diameter |
1.375 in., 1.375" |
| Diameter |
10", 10" |
| Diameter (in.) |
10.000 in. |
| Emission Code |
3, 5 |
| Harmonized Tariff Code (Schedule B) |
8483401000 |
| Hazardous Material Code |
N |
| Input Shaft Spline Quantity |
31 |
| Input Spline |
31, 31 |
| Life Cycle Status Code |
Available to Order |
| Lock Up Type |
No |
| Lock Up/Overdrive |
No, No |
| NAFTA Preference Criterion Code |
B |
| Part Type |
Automatic Transmission Torque Converter |
| Product Type |
Torque Converters, Automatic Transmission Torque Converter |
| SDR Required Flag |
N |
| Series |
3/4 Race, 3/4 Race |
| Stall |
2400-2800, 2400-2800 |
| Stall Speed (RPM) |
2400-2800 |
| Sub Category |
Transmission Hard Parts |
| Trans Model |
Ford- C- 6 (Auto) 3 Speed |
| Trans Year |
1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996 |
| Transmission |
C6 w/1.375 Crank Pilot, Category |
| Transmission Model |
C6 w/1.375 Crank Pilot |
| Use with Power Adder |
No, No |
| Use with Trans-Brake |
No, No |
| Warning |
California Proposition 65, California Proposition 65 |
| GTIN |
00090127017500 |
