The Boss Hog 48403 Street Bandit Series Torque Converter is engineered for GM 700R4 and 2004R transmissions with a 298mm configuration and 27-spline 3-step input shaft (LT-based engines). With a stall range of 2800–3200 RPM, this super lightweight lock-up converter is perfect for performance street applications with choppy cams and lightweight vehicles.
Unlike factory converters, this model eliminates the need for the input shaft O-ring — the lock-up is sealed at the back of the turbine hub. Each unit is CNC machined, leak-tested, digitally balanced, and made in the USA for consistent performance and quality.
Upgrade Tip: For boosted or nitrous builds, step up to the Outlaw Series for enhanced durability.
Key Features
- 2800–3200 RPM stall speed range
- Lock-up compatible
- Fits GM 700R4 and 2004R (298mm, 3-step input shaft)
- 9.6" lightweight converter core
- 10.75" bolt circle
- 27 spline input shaft (count smaller splines)
- 1.703" CNC machined crank pilot
- Eliminates the need for end-of-shaft O-ring
- Lock-up sealed at the back of turbine hub
- Bolt size: 3/8" x 16 TPI (Grade 8 only)
- Hardened chromoly impeller hub
- Torrington-style encased bearings
- Modified heavy-duty stator
- No anti-balloon plate
- Fins are 4-corner tack welded or furnace-brazed
- Leak and pressure tested
- Digitally balanced
- Steel construction, painted black
- Made in the USA
- Sold individually
Vehicle Fitment
- GM vehicles with 700R4 or 2004R transmission
- For 298mm LT-type setups with 3-step, 27-spline input shaft
- Ideal for street builds with aggressive cams and lightweight chassis
What’s Included
- 1x Boss Hog 48403 Street Bandit Lock-Up Torque Converter
Installation Tips
- Use Type F transmission fluid
- Install an auxiliary transmission cooler
- Use blue Loctite on all mounting bolts