Hays Twister 3/4 Race Torque Converters Good names never go away, and neither should good terms!

Features and Benefits:

• 3/4 Race series converters are built, tested, and proven to support up to 650 horsepower.
• 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 torque 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

Details:

• Anti-Balloon Plate: No
• Balanced: Yes
• Bolt Circle: 11.5 Inch
• Crank Pilot Diameter: 1.703 Inch
• Diameter: 9.6 Inch
• Emission Code: 5
• Input Spline: 30
• Lock Up/Overdrive: No
• Series: 3/4 Race
• Stall: 2800-3200
• Transmission: TH400
• Use with Power Adder: No
• Use with Trans-Brake: No

Application Summary:

• 3320 1969-1974 Checker Taxicab Base
• 1975-1982 Checker Marathon Base Deluxe Aerobus
• 1980-1992 Jaguar XJS Base C Collection Rouge Classic Collection
• 1979 Jaguar XJ12 L
• 1972-1979 Jeep DJ5 Base
• 1966-1973 Jeep J-2500 Base
• 1966-1973 Jeep J-2600 Base
• 1966-1969 Jeep J-2700 Base
• 1966-1968 Jeep J-2800 Base
• 1966-1970 Jeep J-3500 Base
• 1966-1970 Jeep J-3600 Base
• 1966-1970 Jeep J-3700 Base
• 1966-1968 Jeep J-3800 Base
• 1966-1971 Jeep Jeepster Base
• 1972-1979 Jeep CJ5 Base Renegade Golden Eagle
• 1972-1975 Jeep CJ6 Base
• 1976-1979 Jeep CJ7 Base Renegade Golden Eagle
• 1974-1979 Jeep Cherokee Base S Wide Track Chief Wide Track Wide Track Golden Eagle
• 1974-1979 Jeep J10 Base
• 1974-1979 Jeep J20 Base
• 1965-1979 Jeep Wagoneer Base Custom Limited
• 1965 Jeep Truck Base
• 1964-1965 Jeep J-300 Base
• 1965 Jeep J-200 Base
• 1971-1973 Jeep J-4500 Base
• 1971-1973 Jeep J-4600 Base
• 1970-1973 Jeep J-4700 Base
• 1970-1973 Jeep J-4800 Base
• 1971-1973 Buick Centurion Base
• 1970-1972 Buick GS Base
• 1964-1969 Buick Wildcat Base
• 1965-1967 Buick Gran Sport Base
• 1973-1977 Buick Century Base Custom Luxus Special Indianapolis 500 Pace Car
• 1964-1981 Buick Electra Base Limited Custom 225 Park Avenue Estate Wagon
• 1970-1981 Buick Estate Wagon Base
• 1964-1981 Buick LeSabre Base Custom Custom Sport Sport Limited
• 1973-1977 Buick Regal Base SR
• 1964-1978 Buick Riviera Base GS SR Sport Lxxv Anniversary Edition
• 1978 Buick Skyhawk S Base
• 1965-1969 Buick Skylark Base
• 1965-1967 Buick Special Base
• 1966-1969 Buick Sportwagon Base
• 1964 Cadillac Series 60 Fleetwood Base
• 1964-1983 Cadillac Commercial Chassis Base
• 1965-1976 Cadillac Calais Base
• 1965-1981 Cadillac DeVille Base Cabriolet d'Elegance Phaeton
• 1964-1979 Cadillac Eldorado Base Biarritz Cabriolet Bicentenial Edition
• 1965-1984 Cadillac Fleetwood 75 60 Special Base 60 Special Brougham Brougham Brougham Talisman Brougham d'Elegance Formal 75 Formal
• 1987-1990 Cadillac Brougham d'Elegance Base
• 1976-1978 Cadillac Seville Base Opera Elegante

Associated Comments:

• 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)