Breakaway Torque Converter GM 4L80-E Lock-up 6x Six-Speed High-Stall

Name: Breakaway Torque Converter GM 4L80-E Lock-up 6x Six-Speed High-Stall
Brand: TCI
SKU: 890-242950
Price: 1495.95 USD
Availability: InStock

^$1,495⁹⁵

Ships on 10/19/2026

Lowest Price Guarantee

Breakaway Torque Converter

GM 4L80-E

Lock-up

6x Six-Speed High-Stall

This Breakaway Torque Converter provides between 2400 to 2600 RPM flash stall without negatively affecting part-throttle driving. TCI has engineered these Breakaway Torque Converters to be efficient at highway cruising speeds and to launch hard at wide-open throttle.

Features:

Furnace-brazed fins
Needle bearings
Hardened, pre-ground pump hub
Computer Balanced
Installed Hardware Included

Benefits:

Harder launches
Quicker acceleration
Improved low-end power
Bolt-in (no modifications required)

1000+ RPM increase in stall over stock

Street/Strip Performance Torque Converter General Application Chart
Torque Converter Series	advertised camshaft duration	rear gear ratio	engine characteristics	expected rpm stall speeds
Torque Converter Series	advertised camshaft duration	rear gear ratio	engine characteristics	*small block*	*big block*
Street Rodder	stock to 260°	stock to 3.23	smooth idle, stock comp. ratio	1500 to 1700	1700 to 1900
Saturday Night Special	stock to 265°	stock to 3.23	smooth idle, stock comp. ratio	1600 to 1800	1800 to 2000
Breakaway	265° to 280°	3.00 to 3.73	fair idle, mild modifications	2200 to 2400	2400 to 2600
StreetFighter	280° to 300°	3.55 to 4.56	rough idle, large fuel system, raised comp. ratio	3000 to 3400	3400 to 3600
Super StreetFighter	280° to 310°	3.73 to 4.88	rough idle, large fuel system, raised comp. ratio top end power	3500 to 3800	3800 to 4000
Ultimate StreetFighter	290°+	3.73+	1000+ horsepower with power adders	3500+	3800+

Part TypeAutomatic Transmission Torque Converter

BrandTCI

Package Height7.6

Package Width14.05

Package Length15.0

Weight46.92 PG

Part CategoryPerformance Parts

Part FitmentSemi Universal

Vendor Part Number242950

Package Qty1

Package TypeEA

No Questions

No Reviews

Some parts are not legal for use in California or other states with similar laws / regulations

Breakaway Torque Converter GM 4L80-E Lock-up 6x Six-Speed High-Stall

Features:

Benefits:

⚠️ Warning

Motor Vehicles

Tools

Electrical Cords