The Boss Hog 47011 is a Night Stalker series torque converter for the GM TH350, and it also fits the TH400 with the proper flexplate and the Powerglide in 30-spline form. It runs a 1,600 to 2,200 RPM stall, close to stock, for a mild street feel. Internally it uses the factory 12 in core, a 30-spline CNC-machined turbine hub, a hardened chrome moly impeller hub, Torrington-style encased bearings, and a modified extreme-duty stator. Every unit is leak and pressure tested, digitally balanced, and made in the USA. It is a non lock-up converter and will not interchange with the lock-up TH350C.
- Series: Night Stalker
- Transmission: GM TH350 (also TH400 with proper flexplate; PG 30-spline)
- Stall Speed: 1,600-2,200 RPM
- Core: 12 in (factory)
- Bolt Circle: 10.75 in
- Turbine Spline: 30 (CNC-machined)
- Impeller Hub: Hardened chrome moly
- Bearings: Torrington-style encased
- Stator: Modified extreme duty
- Crank Pilot: 1.703 in
- Bolt Size: 10mm x 1.5 (Class 10+)
- Anti-Balloon Plates: No
- Lock-Up: No (will not interchange with TH350C)
- Balance: Digitally balanced
- Build: Leak & pressure tested; made in USA
- Part Number: 47011
WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
FAQ
What transmission does the Boss Hog 47011 fit?
It fits the GM TH350, and also the TH400 with the proper flexplate and the 30-spline Powerglide. It will not interchange with the lock-up TH350C.
What is the stall speed?
The 47011 has a 1,600 to 2,200 RPM stall, close to stock. Advertised stall varies with your vehicle setup.
Is this a lock-up converter?
No. The 47011 is a non lock-up converter.
What are the key fitment specs?
It is a 30-spline turbine hub with a 10.75 in bolt circle, a 12 in factory core, and a 1.703 in crank pilot.
Which Boss Hog series should I choose?
Boss Hog groups these converters by build level. Night Stalker suits stock to mild combinations, Street Bandit is the step up once you have upgraded two or more items such as intake, heads, headers, exhaust, cam, or gearing, and the Out Law racing series is for power adders like nitrous, a supercharger, a turbocharger, or a trans brake.