Boss Hog 47402 Night Stalker Torque Converter | GM TH350C | 2200–2800 RPM Stall | Lock-Up | 30 Spline

The Boss Hog 47402 Night Stalker Series Torque Converter is purpose-built for GM TH350C transmissions only. Featuring a stall speed range of 2200–2800 RPM and a 12" factory-style core, this lock-up converter is ideal for mild performance upgrades and reliable street driving.

Engineered for durability, it includes a CNC-machined 30 spline turbine hub, hardened chromoly impeller hub, Torrington-style bearings, and a heavy-duty stator. Each unit is leak-tested, digitally balanced, and made in the USA.

Fitment Note: This converter will not fit standard TH350 or TH400 transmissions. It is exclusively for TH350C applications.

Key Features

• 2200–2800 RPM stall speed range

• Lock-up compatible

• Designed exclusively for GM TH350C transmissions

• 12" factory-style core

• 10.75" bolt circle

• 30 spline turbine hub (CNC machined)

• 1.703" crank pilot

• Bolt size: 10mm x 1.5 pitch threads

• Hardened chromoly impeller hub

• Torrington-style incased bearings

• Modified heavy-duty stator

• Extreme-duty lock-up

• No anti-balloon plate

• Fins are 4-corner tack welded or furnace-brazed

• Leak and pressure tested

• Digitally balanced

• Steel construction, black painted finish

• Made in the USA

• Sold individually

Vehicle Fitment

• GM vehicles equipped with the TH350C automatic transmission

• Will not fit TH350 or TH400 transmissions

• Ideal for street use and lightly modified builds

What’s Included

• 1x Boss Hog 47402 Night Stalker Lock-Up Torque Converter

Installation Tips

• Use Type F transmission fluid

• Apply blue Loctite to all converter bolts