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B&M Holeshot 2500 Torque Converter, 1970-82 Ford C4 50451

B&M Holeshot 2500 Torque Converter, 1970-82 Ford C4 50451
$912.99 ea
NEWARRIVING SOONEstimated Ship Date 05/22/2025 (If Ordered Today)24 Available from HOLLEY PERFORMANCE PRODUCTS as of 05/01/2025
Model: 3998251
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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This Holeshot 2500 fits 1970-82 Ford C4 automatic transmissions with 26 spline input, 1.375 crank pilot and a 10.5-inch bolt circle. Holeshot torque converters are for serious-minded performance enthusiasts and offer additional strength and durability features not found in our Traveler or Tork Master series of converters. The Holeshot 2500 converter is good for vehicles with some performance engine modifications, particularly big cams that tend to reduce low-end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. Other features include fully balanced and pressure tested by expert technicians. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of converters. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product.
Features:
  • Precision Balanced on Certified Balance Equipment
  • Copper Furnace Brazed Impeller and Turbine
  • New Precision Alloy Steel Impeller Hub
  • Race Proven Technology & Quality
Fits 1970-82 Ford, Lincoln, Mercury C4 automatic transmissions with 26 spline input and 1.375 crank pilot.
Installation Notes:
Fits 1970-82 Ford, Lincoln, Mercury C4 automatic transmissions with 26 spline input and 1.375 crank pilot.
About B&M Racing

B&M® specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, and many other transmission products including cast deep aluminum transmission pans, transmission coolers, and automatic transmission fluid. B&M Performance & Off-Road has been at the vanguard of the growing automotive aftermarket since the early 1950s. Racers themselves, B&M’s founders identified the needs of local performance enthusiasts and developed products to fill those needs. B&M specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, automatic shift handles, extended transfer case handles, cast deep aluminum transmission pans, differential covers, transmission coolers, power steering coolers, automatic transmission fluid, and transmission accessories for performance street, truck, Jeep, and off-road applications.

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Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine
Ford Mustang II Base 1974 2.3L / 140 / L4
2.8L / 171 / V6
Ford Mustang II Base 1975 5.0L / 302 / V8
2.3L / 140 / L4
2.8L / 171 / V6
Ford Mustang II Base 1976 5.0L / 302 / V8
2.3L / 140 / L4
2.8L / 171 / V6
Ford Mustang II Base 1977 5.0L / 302 / V8
2.3L / 140 / L4
2.8L / 171 / V6
Ford Mustang II Base 1978 5.0L / 302 / V8
2.3L / 140 / L4
2.8L / 171 / V6
Ford Mustang II Ghia 1975 5.0L / 302 / V8
2.8L / 171 / V6
2.3L / 140 / L4
Ford Mustang II Ghia 1976 5.0L / 302 / V8
2.8L / 171 / V6
2.3L / 140 / L4
Ford Mustang II Ghia 1977 5.0L / 302 / V8
2.8L / 171 / V6
2.3L / 140 / L4
Ford Mustang II Ghia 1978 5.0L / 302 / V8
2.8L / 171 / V6
2.3L / 140 / L4
Ford Mustang II Mach 1 1975 5.0L / 302 / V8
2.8L / 171 / V6
Ford Mustang II Mach 1 1976 5.0L / 302 / V8
2.8L / 171 / V6
Ford Mustang II Mach 1 1977 5.0L / 302 / V8
2.8L / 171 / V6
Ford Mustang II Mach 1 1978 5.0L / 302 / V8
2.8L / 171 / V6
Ford Mustang II 1974
Ford Mustang II 1975
Ford Mustang II 1976
Ford Mustang II 1977
Ford Mustang II 1978
Ford Mustang Base 1964 3.3L / 200 / L6
2.8L / 170 / L6
4.3L / 260 / V8
4.7L / 289 / V8
Ford Mustang Base 1965 3.3L / 200 / L6
2.8L / 170 / L6
4.3L / 260 / V8
4.7L / 289 / V8
Ford Mustang Base 1966 3.3L / 200 / L6
4.7L / 289 / V8
Ford Mustang Base 1967 3.3L / 200 / L6
6.4L / 390 / V8
4.7L / 289 / V8
Ford Mustang Base 1968 7.0L / 428 / V8
3.3L / 200 / L6
7.0L / 427 / V8
5.0L / 302 / V8
6.4L / 390 / V8
4.7L / 289 / V8
Ford Mustang Base 1969 7.0L / 428 / V8
3.3L / 200 / L6
5.0L / 302 / V8
6.4L / 390 / V8
5.8L / 351 / V8
4.1L / 250 / L6
7.0L / 429 / V8
Ford Mustang Base 1970 7.0L / 428 / V8
3.3L / 200 / L6
5.0L / 302 / V8
5.8L / 351 / V8
4.1L / 250 / L6
7.0L / 429 / V8
Ford Mustang Base 1971 5.0L / 302 / V8
5.8L / 351 / V8
4.1L / 250 / L6
7.0L / 429 / V8
Ford Mustang Base 1972 5.0L / 302 / V8
5.8L / 351 / V8
4.1L / 250 / L6
Ford Mustang Base 1973 5.0L / 302 / V8
5.8L / 351 / V8
4.1L / 250 / L6
Ford Mustang Base 1979 3.3L / 200 / L6
5.0L / 302 / V8
2.3L / 140 / L4
2.8L / 171 / V6
Ford Mustang Base 1980 3.3L / 200 / L6
5.0L / 302 / V8
4.2L / 255 / V8
2.3L / 140 / L4
Ford Mustang Base 1981 3.3L / 200 / L6
5.0L / 302 / V8
4.2L / 255 / V8
2.3L / 140 / L4
Ford Mustang Base 1982 5.0L / 302 / V8
Ford Mustang Base 1983 5.0L / 302 / V8
Ford Mustang Base 1984 5.0L / 302 / V8
Ford Mustang Cobra 1981 4.2L / 255 / V8
Ford Mustang Ghia 1979 3.3L / 200 / L6
5.0L / 302 / V8
2.8L / 171 / V6
2.3L / 140 / L4
Ford Mustang Ghia 1980 3.3L / 200 / L6
4.2L / 255 / V8
2.3L / 140 / L4
Ford Mustang Ghia 1981 3.3L / 200 / L6
4.2L / 255 / V8
2.3L / 140 / L4
Ford Mustang 1970 5.0L / 302 / V8
Ford Mustang 1971 5.0L / 302 / V8
Ford Mustang 1972 5.0L / 302 / V8
Ford Mustang 1973 5.0L / 302 / V8
Ford Mustang 1979 5.0L / 302 / V8
Ford Mustang 1980 5.0L / 302 / V8
Ford Mustang 1981 5.0L / 302 / V8
Mercury Capri Base 1972 2.0L / 122 / L4
1.6L / 98 / L4
2.6L / 156 / V6
Mercury Capri Base 1973 2.0L / 122 / L4
2.6L / 156 / V6
Mercury Capri Base 1974 2.0L / 122 / L4
2.8L / 171 / V6
Mercury Capri Base 1975 2.8L / 171 / V6
2.3L / 140 / L4
Mercury Capri Base 1976 2.8L / 171 / V6
2.3L / 140 / L4
Mercury Capri Base 1977 2.8L / 171 / V6
2.3L / 140 / L4
Mercury Capri Base 1979 2.8L / 171 / V6
5.0L / 302 / V8
3.3L / 200 / L6
2.3L / 140 / L4
Mercury Capri Base 1980 4.2L / 255 / V8
3.3L / 200 / L6
2.3L / 140 / L4
Mercury Capri Base 1981 4.2L / 255 / V8
3.3L / 200 / L6
2.3L / 140 / L4
Mercury Capri GS 1981 3.3L / 200 / L6
4.2L / 255 / V8
2.3L / 140 / L4
Mercury Capri Ghia 1979 5.0L / 302 / V8
2.3L / 140 / L4
3.3L / 200 / L6
2.8L / 171 / V6
Mercury Capri Ghia 1980 4.2L / 255 / V8
2.3L / 140 / L4
3.3L / 200 / L6
Mercury Capri 1972
Mercury Capri 1973
Mercury Capri 1974
Mercury Capri 1975
Mercury Capri 1976
Mercury Capri 1977
Mercury Capri 1979
Mercury Capri 1980
Mercury Capri 1981
Mercury Cougar Base 1967 4.7L / 289 / V8
6.4L / 390 / V8
Mercury Cougar Base 1968 7.0L / 427 / V8
5.0L / 302 / V8
4.7L / 289 / V8
7.0L / 428 / V8
6.4L / 390 / V8
Mercury Cougar Base 1969 5.8L / 351 / V8
5.0L / 302 / V8
7.0L / 428 / V8
6.4L / 390 / V8
Mercury Cougar Base 1970 5.8L / 351 / V8
7.0L / 429 / V8
7.0L / 428 / V8
6.4L / 390 / V8
Mercury Cougar Base 1971 5.8L / 351 / V8
7.0L / 429 / V8
Mercury Cougar Base 1972 5.8L / 351 / V8
Mercury Cougar Base 1973 5.8L / 351 / V8
7.5L / 460 / V8
6.6L / 400 / V8
Mercury Cougar Base 1977 5.8L / 351 / V8
5.0L / 302 / V8
6.6L / 400 / V8
Mercury Cougar Base 1978 5.8L / 351 / V8
5.0L / 302 / V8
6.6L / 400 / V8
Mercury Cougar Base 1979 5.8L / 351 / V8
5.0L / 302 / V8
Mercury Cougar Base 1981 2.3L / 140 / L4
3.3L / 200 / L6
4.2L / 255 / V8
Mercury Cougar Brougham 1977 5.8L / 351 / V8
6.6L / 400 / V8
5.0L / 302 / V8
Mercury Cougar Villager 1977 5.8L / 351 / V8
6.6L / 400 / V8
Mercury Cougar XR-7 1975 6.6L / 400 / V8
5.8L / 351 / V8
7.5L / 460 / V8
Mercury Cougar XR-7 1976 6.6L / 400 / V8
5.8L / 351 / V8
7.5L / 460 / V8
Mercury Cougar XR-7 1977 6.6L / 400 / V8
5.8L / 351 / V8
5.0L / 302 / V8
Mercury Cougar XR-7 1978 6.6L / 400 / V8
5.8L / 351 / V8
5.0L / 302 / V8
Mercury Cougar XR-7 1979 5.8L / 351 / V8
5.0L / 302 / V8
Mercury Cougar XR-7 1980 4.2L / 255 / V8
5.0L / 302 / V8
3.3L / 200 / L6
Mercury Cougar XR-7 1981 4.2L / 255 / V8
5.0L / 302 / V8
3.3L / 200 / L6
Mercury Cougar 1970
Mercury Cougar 1971
Mercury Cougar 1972
Mercury Cougar 1973
Mercury Cougar 1975
Mercury Cougar 1976
Mercury Cougar 1977
Mercury Cougar 1978
Mercury Cougar 1979
Mercury Cougar 1980
Mercury Cougar 1981

Specifications:

Anti-Balloon Plate No
Automotive Item Grade High Performance
California Proposition 65 Required No
Crank Pilot Diameter (in) 1.38
Emission Code 5
FlexPlate Bolt Circle 10-1/2"
Input Spline 26
Lockup Type No
Mounting Studs Yes
Part Type Automatic Transmission Torque Converter
Product Type Automatic Transmission Torque Converter
Stall 2,300-2,500
Stall Speed 2,300-2,500
Torque Converter Series Holeshot
Transmission C4
Transmission Model C-4
Warranty Time 12 Months

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B&M Holeshot 2500 Torque Converter, 1970-82 Ford C4 50451: