Boss Hog 48403 Street Bandit Torque Converter | GM 700R4/2004R | 2800–3200 RPM Stall | Lock-Up | 27 Spline

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