The Boss Hog 48442 Night Stalker Series Torque Converter is engineered for GM vehicles equipped with the 700R4 transmission using the 298mm, 3-step input shaft (LT-based applications). With a stall range of 2200–2800 RPM, this factory-sized 12-inch converter is ideal for daily driven vehicles and mild performance upgrades, especially those featuring lightweight builds and choppy cam profiles.

Built with premium internals including Torrington-style bearings, a hardened chromoly impeller hub, and a modified heavy-duty stator, this lock-up converter ensures reliable torque delivery with smooth drivability. Leak-tested, digitally balanced, and made in the USA, it’s a dependable solution for GM street and light performance applications.

Upgrade Tip:
For builds with upgraded cam, intake, headers, or exhaust, step up to the Street Bandit Series.
For power adder setups (turbo, supercharger, nitrous, or trans brake), go with the Outlaw Series.

Key Features:

• Stall Speed Range: 2200–2800 RPM
• Transmission Compatibility: GM 700R4
• Application: LT-based engines with 298mm 3-step input shaft
• Lock-Up Compatible: Yes
• Core Diameter: 12 inches (factory size)
• Input Splines: 30 (count smaller splines at top of each tooth)
• Crank Pilot Diameter: 1.703 inches
• Bolt Circle Diameter: 10.75 inches
• Bolt Size: 10mm x 1.5 pitch (Class 10)
• Anti-Balloon Plate: Not included
• Build Highlights:
• Hardened chromoly impeller hub
• Torrington-style incased bearings
• Modified heavy-duty stator
• Leak & pressure tested
• Digitally balanced
• Material: Steel
• Finish: Black painted
• Made in the USA
• Quantity: Sold individually

• GM vehicles with the 700R4 automatic transmission
• 298mm configurations with 3-step input shaft
• Designed for choppy cams and lightweight street applications