B&M Holeshot 3000 Torque Converter, 1984-93 GM TH700R4/4L60

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Part
B&M 70421
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30 spline input shaft. 10.75 and 11.50-inch bolt circles. 2800-3200 RPM stall
This HoleShot 3000 fits 1984-93 GM TH700R4/4L60 automatic transmissions with 30 spline input shaft. This converter does not retain the lock-up feature. Holeshot torque converters are for serious-minded performance enthusiasts and offer additional strength and durability features not found in our Tork Master or Traveler series of converters. The Holeshot 3000 converter is an excellent choice 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. Does Not fit 4L60E transmissions. Both 10.75 and 11.50-inch bolt circles

Features

  • Precision Balanced on Certified Balance Equipment
  • Copper Furnace Brazed Impeller and Turbine
  • New Precision Alloy Steel Impeller Hub
  • Race Proven Technology & Quality
More Information
PartB&M 70421
Manufacturer Part Number70421
BrandB&M
Emission Code5
MaterialSteel
Part TypeAutomatic Transmission Torque Converter
Stall Torque Ratio2800 to 3200 RPM stall
Typeproduct

Lockup
No
Material
Steel
Product Type
Automatic Transmission Torque Converter
Transmission
["4L60", "700R4"]
Emission Code
5
Furnace Brazed
Yes
Indicator Light
No
Stall Torque Ratio
2800 to 3200 RPM stall
Additional Contents
New needle bearings
Automotive Item Grade
High Performance
Flexplate Change Needed
No
Input Shaft Spline Count
30
California Proposition 65 Required
No

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