The Boss Hog 49482 is a Night Stalker series lock-up torque converter for the GM 4L80E and 4L85E automatic transmissions behind LS engines, on the two-step input shaft with a 2 in impeller hub snout. It runs a 2,200 to 2,800 RPM stall and is built with a much thicker lock-up liner and a modified stator to keep the converter cooler and address the factory converter's problem areas. It uses a factory 13 in core, an 11.675 in bolt circle, a 35-spline input shaft, an oversized extreme-duty single-disk lock-up, an extreme-temp heavy-duty O-ring, and a 1.703 in crank pilot. Make sure your gear ratio matches your setup, especially with taller tires. Every unit is leak and pressure tested, digitally balanced, and made in the USA.
- Series: Night Stalker
- Transmission: GM 4L80E, 4L85E (LS, lock-up)
- Stall Speed: 2,200-2,800 RPM
- Core: 13 in (factory)
- Bolt Circle: 11.675 in (factory)
- Input Spline: 35
- Impeller Hub: 2 in snout, hardened chrome moly
- Lock-Up: Oversized extreme-duty single disk; extreme-temp heavy-duty O-ring
- Bearings: Torrington-style encased
- Stator: Modified extreme duty
- Crank Pilot: 1.703 in
- Bolt Size: 10mm x 1.5 (Class 10.9+)
- Anti-Balloon Plates: No
- Balance: Digitally balanced
- Build: Leak & pressure tested; made in USA
- Part Number: 49482
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 49482 fit?
It fits the GM 4L80E and 4L85E lock-up transmissions behind LS engines, on the two-step input shaft with a 2 in impeller hub snout.
What is the stall speed?
The 49482 has a 2,200 to 2,800 RPM stall. Most of these vehicles may need more gear, especially with taller tires. Advertised stall varies with your vehicle setup.
Is this a lock-up converter?
Yes. It uses an oversized extreme-duty single-disk lock-up with a much thicker liner than the factory converter.
What are the key fitment specs?
It is a 35-spline input with an 11.675 in bolt circle, a 13 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.