Select a vehicle to find exact fit parts

1978 GMC C15 Suburban

Back to vehicles list

1978 GMC C15 Suburban Automatic Transmission Torque Converter Parts

Choose your Engine for your 1978 GMC C15 Suburban

6 Cyl 4.1L 8 Cyl 5.0L 8 Cyl 5.7L 8 Cyl 7.4L

Showing 1 - 5 of 5 products

Sort:

Show:

Image

SKU

Product

Rating

Price

1978 GMC C15 Suburban Automatic Transmission Torque Converter 8 Cyl 7.4L B&M

1900 - 2100 RPM Stall; Requires 10.75 in. Bolt Circle/Dual Pattern Flexplate Req. 10.75 in. Bolt Circle Or Dual Pattern Flexplate
Tork Master 2000 Torque Converter; 1900 - 2100 RPM Stall; Requires 10.75 in. Bolt Circle/Dual Pattern Flexplate;
Tork Master 2000 Torque Converter
Product Attributes:
- Trans Year:
  - 1965
  - 1966
  - 1967
  - 1968
  - 1969
  - 1970
  - 1971
  - 1972
  - 1973
  - 1974
  - 1975
  - 1976
  - 1977
  - 1978
  - 1979
  - 1980
  - 1981
  - 1982
  - 1983
  - 1984
  - 1985
  - 1986
  - 1987
  - 1988
  - 1989
  - 1990
  - 1991
- Automotive Item Grade: High Performance
- WARNING CA Proposition 65: No
- Bolt Circle Diameter: 10.750 In.
- Flexplate Change Needed: Yes
- Stall Speed (RPM): 1900-2100
- Furnace-Brazed: Yes
- Trans Model:
  - Gm- Th350 (auto) 3 Speed
  - Gm- Th375 (auto) 3 Speed
  - Gm- Th375b (auto) 3 Speed
  - Gm- Th400 (auto) 3 Speed
  - Gm- Th425 (auto) 3 Speed
Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
- Washer Between Turbine and Cover
This Tork Master 2000 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C.) Dont let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features which make them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs. of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Notes: Not recommended for big block, 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. Has 10.75-inch bolt circle

Additional Fitment Information:

Vehicle	Block	CC	Engine	Transmission Manuf. Code	CID
1978 - GMC C15 Suburban	V	-	8 Cyl 7.4L	THM350	454

4 In Stock

$500.90 USD

$601.08 USD


Brand	B&M
Part #	B3220400
Condition	New
Warehouse	B

1978 GMC C15 Suburban Automatic Transmission Torque Converter 8 Cyl 7.4L B&M

2800 - 3200 RPM Stall
Tork Master 3000 Torque Converter; 2800 - 3200 RPM Stall;
Tork Master 3000 Torque Converter
Product Attributes:
- Trans Year:
  - 1965
  - 1966
  - 1967
  - 1968
  - 1969
  - 1970
  - 1971
  - 1972
  - 1973
  - 1974
  - 1975
  - 1976
  - 1977
  - 1978
  - 1979
  - 1980
  - 1981
  - 1982
  - 1983
  - 1984
  - 1985
  - 1986
  - 1987
  - 1988
  - 1989
  - 1990
  - 1991
- Automotive Item Grade: High Performance
- WARNING CA Proposition 65: No
- Bolt Circle Diameter: 10.750 In.
- Flexplate Change Needed: Yes
- Stall Speed (RPM): 2800-3200
- Furnace-Brazed: Yes
- Trans Model:
  - Gm- Th350 (auto) 3 Speed
  - Gm- Th375 (auto) 3 Speed
  - Gm- Th375b (auto) 3 Speed
  - Gm- Th400 (auto) 3 Speed
  - Gm- Th425 (auto) 3 Speed
Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
- Washer Between Turbine and Cover
The Tork Master 3000 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C) transmissions. Dont let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs. of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, 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

Additional Fitment Information:

Vehicle	Block	CC	Engine	Transmission Manuf. Code	CID
1978 - GMC C15 Suburban	V	-	8 Cyl 7.4L	THM350	454

2 In Stock

$834.90 USD

$1,001.88 USD


Brand	B&M
Part #	B3220402
Condition	New
Warehouse	B

1978 GMC C15 Suburban Automatic Transmission Torque Converter 8 Cyl 7.4L B&M

2300 - 2500 RPM Stall
Tork Master 2400 Torque Converter; 2300 - 2500 RPM Stall;
Tork Master 2400 Torque Converter
Product Attributes:
- Trans Year:
  - 1965
  - 1966
  - 1967
  - 1968
  - 1969
  - 1970
  - 1971
  - 1972
  - 1973
  - 1974
  - 1975
  - 1976
  - 1977
  - 1978
  - 1979
  - 1980
  - 1981
  - 1982
  - 1983
  - 1984
  - 1985
  - 1986
  - 1987
  - 1988
  - 1989
  - 1990
  - 1991
- Automotive Item Grade: High Performance
- WARNING CA Proposition 65: No
- Bolt Circle Diameter: 10.750 In.
- Flexplate Change Needed: Yes
- Stall Speed (RPM): 2300-2500
- Furnace-Brazed: Yes
- Trans Model:
  - Gm- Th350 (auto) 3 Speed
  - Gm- Th375 (auto) 3 Speed
  - Gm- Th375b (auto) 3 Speed
  - Gm- Th400 (auto) 3 Speed
  - Gm- Th425 (auto) 3 Speed
Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
- Washer Between Turbine and Cover
The Tork Master 2400 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C.) Dont let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs. of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, 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

Additional Fitment Information:

Vehicle	Block	CC	Engine	Transmission Manuf. Code	CID
1978 - GMC C15 Suburban	V	-	8 Cyl 7.4L	THM350	454

20 In Stock

$567.71 USD

$681.25 USD


Brand	B&M
Part #	B3220404
Condition	New
Warehouse	B

1978 GMC C15 Suburban Automatic Transmission Torque Converter 8 Cyl 7.4L B&M

2300 - 2500 RPM Stall; Requires 10.75 in. Bolt Circle/Dual Pattern Flexplate Req. 10.75 in. Bolt Circle Or Dual Pattern Flexplate
Holeshot 2400 Torque Converter; 2300 - 2500 RPM Stall; Requires 10.75 in. Bolt Circle/Dual Pattern Flexplate;
Holeshot 2400 Torque Converter
Product Attributes:
- Trans Year:
  - 1965
  - 1966
  - 1967
  - 1968
  - 1969
  - 1970
  - 1971
  - 1972
  - 1973
  - 1974
  - 1975
  - 1976
  - 1977
  - 1978
  - 1979
  - 1980
  - 1981
  - 1982
  - 1983
  - 1984
  - 1985
  - 1986
  - 1987
  - 1988
  - 1989
  - 1990
  - 1991
- Automotive Item Grade: High Performance
- WARNING CA Proposition 65: No
- Bolt Circle Diameter: 10.750 In.
- Flexplate Change Needed: Yes
- Stall Speed (RPM): 2300-2500
- Furnace-Brazed: Yes
- Trans Model:
  - Gm- Th350 (auto) 3 Speed
  - Gm- Th375 (auto) 3 Speed
  - Gm- Th375b (auto) 3 Speed
  - Gm- Th400 (auto) 3 Speed
  - Gm- Th425 (auto) 3 Speed
Features:
- Furnace Brazed Impeller
- Steel Alloy Pump Drive Tube
- Heavy Duty Needle Bearing
- Between Stator and Turbine
- Furnace Brazed Turbine
- New Turbine Hub
- New Springs/Rollers In Stator
HoleShot 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) 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 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. 10.75-inch bolt circle.

Additional Fitment Information:

Vehicle	Block	CC	Engine	Transmission Manuf. Code	CID
1978 - GMC C15 Suburban	V	-	8 Cyl 7.4L	THM350	454

3 In Stock

$834.90 USD

$1,001.88 USD


Brand	B&M
Part #	B3220412
Condition	New
Warehouse	B

1978 GMC C15 Suburban Automatic Transmission Torque Converter 8 Cyl 7.4L B&M

2900 - 3200 RPM Stall; w/1.71 in. Crank Pilot
Holeshot 3200 Torque Converter; 2900 - 3200 RPM Stall; w/1.71 in. Crank Pilot;
Holeshot 3200 Torque Converter
Product Attributes:
- Crank Pilot Diameter: 1.710 In.
- Automotive Item Grade: High Performance
- Package Contents: Torque Converter, Mounting Hardware
- WARNING CA Proposition 65: No
- Bolt Circle Diameter: 10.750 In./11.500 In.
- Anti Balloon Plate: No
- Mounting Stud: No
- Torque Converter Series: Holeshot
- Lock Up Type: No
- Transmission Model: Th350
- Stall Speed (RPM): 2900-3200
- Trans Model:
  - Gm- Th350 (auto) 3 Speed
  - Gm- Th375 (auto) 3 Speed
  - Gm- Th400 (auto) 3 Speed
  - Gm- Th425 (auto) 3 Speed
Features:
- Furnace Brazed Impeller
- Steel Alloy Pump Drive Tube
- Heavy Duty Needle Bearing
- Between Stator and Turbine
- Furnace Brazed Turbine
- New Turbine Hub
- New Springs/Rollers In Stator
This Holeshot 3200 fits 1965-91 GM TH400, 425, 375 and 1968-81 TH350, 375B (not 350C) transmissions. 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 2400 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. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of torque converters.