The Boss Hog 48441 is a Night Stalker series lock-up torque converter for the GM 700R4 (298mm) automatic transmission, on the 30-spline three-step input shaft. It runs a 1,600 to 2,200 RPM stall, close to stock, for a mild street feel. It strengthens the factory weak points with a much thicker, stronger lock-up liner, a modified heavy-duty stator, and new Torrington-style encased bearings so it handles more power and runs cooler. It uses the factory 12 in core, a 10.75 in bolt circle, and a factory 1.703 in crank pilot. Note the 30-spline input, which sets it apart from the 27-spline 48402; count the smaller set of splines to confirm. Every unit is leak and pressure tested, digitally balanced, and made in the USA.
- Series: Night Stalker
- Transmission: GM 700R4 (298mm, lock-up)
- Stall Speed: 1,600-2,200 RPM
- Input Shaft: 30-spline, three-step (count the smaller splines)
- Core: 12 in (factory)
- Bolt Circle: 10.75 in
- Lock-Up: Yes (extreme-duty)
- Impeller Hub: Hardened chrome moly
- Bearings: Torrington-style encased
- Stator: Modified heavy duty
- Crank Pilot: 1.703 in (factory)
- Bolt Size: 10mm x 1.5 (Class 10)
- Anti-Balloon Plates: No
- Balance: Digitally balanced
- Build: Leak & pressure tested; made in USA
- Part Number: 48441
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 48441 fit?
It fits the GM 700R4 (298mm) lock-up transmission on the 30-spline three-step input shaft.
What is the stall speed?
The 48441 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?
Yes. It uses an extreme-duty lock-up with a thicker, stronger liner than the factory converter.
How is this different from the 48402?
The 48441 is 30-spline; the 48402 is 27-spline. Count the smaller set of splines on your input shaft before ordering.
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.
