Bolts must be 3/8-16 x 3/4 to 1 inch in length and only use Grade 8 quality.

Features and Benefits:

• 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

Details:

• Anti-Balloon Plate: No
• Balanced: Yes
• Bolt Circle: 11-7/16 Inch
• Bolt size: 3/8-16 x 1|3/8-16 x 3/4
• Crank Pilot Diameter: 1.375 Inch
• Diameter: 10 Inch
• Emission Code: 5
• Input Spline: 26
• Lock Up/Overdrive: No
• Series: 3/4 Race
• Stall: 2800-3200
• Transmission: C4 Pan Filled
• Use with Power Adder: No
• Use with Trans-Brake: No

Application Summary:

• 998 1965-1969 Ford Fairlane Base
• 1964-1970 Ford Falcon Base
• 1964-1967 Ford Galaxie Base
• 1968-1974 Ford Galaxie 500 Base
• 1964-1967 Ford P-100 Base
• 1965-1972 Ford Custom Base
• 1966-1977 Ford Bronco Base Sport Custom Northland Ranger
• 1966-1980 Ford LTD Base Landau Country Squire Brougham S Crown Victoria
• 1975 Ford Courier Base
• 1973-1977 Ford Custom 500 Base Ranch Wagon
• 1969-1977 Ford E-100 Econoline Base Chateau Custom Northland
• 1975-1977 Ford E-100 Econoline Club Wagon Custom Northland Base Chateau
• 1976-1977 Ford E-150 Econoline Northland Base Custom Chateau
• 1976-1977 Ford E-150 Econoline Club Wagon Base Chateau Custom Northland
• 1975-1976 Ford Elite Base
• 1964-1981 Ford F-100 Base Custom Ranger XLT Ranger Northland XLT Ranger Lariat
• 1977-1978 Ford F-150 Base Custom Ranger Northland Ranger XLT XLT Ranger Lariat
• 1964-1977 Ford F-250 Base XLT Northland Ranger XLT Custom Ranger
• 1964-1977 Ford F-350 Base Ranger XLT Ranger Northland Custom XLT
• 1978-1981 Ford Fairmont Futura Base
• 1975-1976 Ford Gran Torino Base Squire Brougham Elite Sport
• 1975-1981 Ford Granada Base Ghia ESS GL L GLX
• 1977-1979 Ford LTD II S Base Brougham Squire Landau
• 1970-1977 Ford Maverick Base Grabber
• 1964-1984 Ford Mustang Base Ghia Cobra
• 1974-1978 Ford Mustang II Base Ghia Mach 1
• 1964-1974 Ford P-350 Base
• 1971-1980 Ford Pinto Base Squire Pony
• 1964-1979 Ford Ranchero Base 500 GT Squire
• 1977-1981 Ford Thunderbird Base Town Landau Diamond Jubilee Heritage Silver Anniversary
• 1968-1976 Ford Torino Base
• 1977-1980 Lincoln Versailles Base
• 1972-1974 Mercury Monterey Base
• 1964-1971 Mercury Cyclone Base
• 1968 Mercury Montclair Base
• 1975-1980 Mercury Bobcat Base Runabout Villager S Runabout MPG Runabout
• 1972-1981 Mercury Capri Base Ghia GS
• 1980 Mercury Grand Marquis Base Colony Park
• 1964-1977 Mercury Comet Base 202
• 1967-1981 Mercury Cougar Base XR-7 Brougham Villager
• 1971-1980 Mercury Marquis Base Brougham
• 1975-1980 Mercury Monarch Base Ghia Grand Ghia
• 1968-1976 Mercury...

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)
• Bolts must be 3/8-16 x 3/4 to 1 inch in length and only use Grade 8 quality.