10-Inch 35-Spline Street/Strip Lockup Torque Converter

The Transmission Specialties 10090HS is a high-performance torque converter specifically engineered for GM 4L80E LS applications. Designed for street and strip use, this lockup converter offers a 3600-4000 RPM stall speed, making it ideal for maximizing power delivery in modified vehicles. It boasts a 10-inch diameter and a 35-spline input for compatibility with a range of transmissions. Constructed with durability in mind, the 10090HS features a billet front cover, billet lock-up piston, and Torrington bearings. It also includes an aftermarket aluminum stator and furnaced brazed fins for optimal performance and heat dissipation. The anti-ballooning plate ensures consistent operation under demanding conditions, while the flanged impeller hub helps prevent ballooning. This converter is rated for a maximum engine horsepower of 650 HP and is designed for applications where converter lockup is not required under wide-open throttle (WOT). This converter is a weld-together design, emphasizing its robust construction for high-stress environments. It does not feature a mechanical diode or a spragless design.