Important Update on US Tariffs and Pricing DETAILS ]

855.444.6872 Contact Us Mon-Sat 10a-6p
DRIVEN BY CARE

B&M Traveler Torque Converter, 1968-81 GM TH350 30423

B&M Traveler Torque Converter, 1968-81 GM TH350 30423
B&M Traveler Torque Converter, 1968-81 GM TH350 30423B&M Traveler Torque Converter, 1968-81 GM TH350 30423B&M Traveler Torque Converter, 1968-81 GM TH350 30423B&M Traveler Torque Converter, 1968-81 GM TH350 30423
$699.99 ea
NEWARRIVING SOONEstimated Ship Date 06/06/2025 (If Ordered Today)10 Available from HOLLEY PERFORMANCE PRODUCTS as of 05/18/2025
Model: 3998178
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
STORE PICKUP
[More Info]
This B&M Traveler torque converter fits GM 1968-81 TH350, TH375B (will not fit TH350C) automatic transmissions. Traveler torque converters are an excellent choice for stock vehicles, vehicles with light performance modifications, tow vehicles and RV's. They will increase the stall speed by approximately 300 rpm over a factory stock converter. The additional stall of the Traveler makes acceleration much crisper and fun to drive. Features include fully balanced and pressure tested by expert technicians and are manufactured to B&M's exacting tolerances for long life and includes new precision pump drive tube, heavy duty needle bearings, furnace brazed and new sprag and rollers in stator. 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. 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. 10.75-inch bolt circle
Features:
  • Precision Balanced on Certified Balance Equipment
  • Economical and Reliable Performance
  • Race Proven Technology & Quality
  • Heavy Duty Needle Bearings
  • Ideal for Towing Applications
  • Precision Pump Drive Tube
  • Furnace Brazed
Fits GM 1968 to 1981 TH350, TH375B (will not fit TH350C) automatic transmissions
Installation Notes:
Fits GM 1968 to 1981 TH350, TH375B (will not fit TH350C) automatic transmissions
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.

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
Chevrolet Nova Base 1970 2.5L / 153 / L4
3.8L / 230 / L6
4.1L / 250 / L6
6.6L / 402 / V8
6.5L / 396 / V8
5.7L / 350 / V8
5.0L / 307 / V8
7.4L / 454 / V8
Chevrolet Nova Base 1971 4.1L / 250 / L6
6.6L / 402 / V8
5.7L / 350 / V8
5.0L / 307 / V8
7.4L / 454 / V8
Chevrolet Nova Base 1972 4.1L / 250 / L6
6.6L / 402 / V8
5.7L / 350 / V8
5.0L / 307 / V8
Chevrolet Nova Base 1973 4.1L / 250 / L6
5.7L / 350 / V8
5.0L / 307 / V8
Chevrolet Nova Base 1974 4.1L / 250 / L6
5.7L / 350 / V8
Chevrolet Nova Base 1975 4.1L / 250 / L6
5.7L / 350 / V8
4.3L / 262 / V8
Chevrolet Nova Base 1976 5.0L / 305 / V8
4.1L / 250 / L6
5.7L / 350 / V8
Chevrolet Nova Base 1977 5.0L / 305 / V8
4.1L / 250 / L6
5.7L / 350 / V8
Chevrolet Nova Base 1978 5.0L / 305 / V8
4.1L / 250 / L6
5.7L / 350 / V8
Chevrolet Nova Concours 1976 4.1L / 250 / L6
5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet Nova Concours 1977 4.1L / 250 / L6
5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet Nova Custom 1975 4.1L / 250 / L6
5.7L / 350 / V8
4.3L / 262 / V8
Chevrolet Nova Custom 1978 5.0L / 305 / V8
4.1L / 250 / L6
5.7L / 350 / V8
Chevrolet Nova LN 1975 4.3L / 262 / V8
5.7L / 350 / V8
4.1L / 250 / L6
Chevrolet Nova Police 1975 4.3L / 262 / V8
4.1L / 250 / L6
5.7L / 350 / V8
Chevrolet Nova Police 1976 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet Nova Police 1977 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet Nova Police 1978 4.1L / 250 / L6
5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet Nova Rally 1977 5.0L / 305 / V8
4.1L / 250 / L6
5.7L / 350 / V8
Chevrolet Nova Rally 1978 5.0L / 305 / V8
4.1L / 250 / L6
5.7L / 350 / V8
Chevrolet Nova SS 1976 5.7L / 350 / V8
5.0L / 305 / V8
Chevrolet Nova 1970 5.0L / 307 / V8
Chevrolet Nova 1971 5.0L / 307 / V8
Chevrolet Nova 1972 5.0L / 307 / V8
Chevrolet Nova 1973 5.0L / 307 / V8
Chevrolet Nova 1974 5.7L / 350 / V8
Chevrolet Nova 1975 5.7L / 350 / V8
Chevrolet Nova 1976 5.0L / 305 / V8
Chevrolet Nova 1977 5.0L / 305 / V8
Chevrolet Nova 1978 5.0L / 305 / V8

Specifications:

Additional Contents New needle bearing and thrust washer
Automotive Item Grade High Performance
Bolt Circle Diameter (in) 10.75
California Proposition 65 Required No
Emission Code 5
Flexplate Change Needed No
Furnace Brazed Yes
Input Spline 30
Material Steel
Part Type Automatic Transmission Torque Converter
Product Type Automatic Transmission Torque Converter
Stall 1,900-2,100
Stall Speed 1,900-2,100
Stall Torque Ratio 1,900 to 2,100 RPM stall
Transmission TH350, TH375B
Warranty Time 12 Months

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

B&M Traveler Torque Converter, 1968-81 GM TH350 30423: