FTI Performance SRLS0086 3600 Stall Billet Lock-Up Torque Converter 4L60E/4L65E/4L70E LS

FTI Performance SRLS0086 Street Racer Lock-Up Series Torque Converter

3600 RPM Stall | 9.5 Inch | Billet Single Disc Lock-Up | 4L60E 4L65E 4L70E | LS

The FTI Performance SRLS0086 Street Racer Lock-Up Torque Converter is engineered for LS based GM vehicles equipped with 4L60E, 4L65E, or 4L70E automatic transmissions. Featuring a 9.5 inch billet construction and a 3600 RPM stall speed, this converter delivers aggressive launch characteristics while retaining reliable lock-up performance for high horsepower street and street-strip builds.

As part of FTI’s SRLS Street Racer Series, the SRLS0086 is built with a forged billet lock-up cover, anti ballooning flanged hub, and high performance Torrington bearings. Rated for up to 1000 horsepower and backed by a 3 year warranty, this converter is ideal for turbocharged, supercharged, or high RPM naturally aspirated LS combinations.

Torque Converter Highlights

• 3600 RPM stall speed for aggressive performance
• Street Racer Lock-Up Series for LS based applications
• Billet single disc lock-up design
• Forged billet lock-up cover for durability
• Anti ballooning flanged hub for high torque protection
• Furnace brazed and TIG welded internal fins
• High performance Torrington bearings for longevity
• Rated up to 1000 horsepower
• Mounting hardware included

Technical Specifications

• Diameter: 9.5 inch
• Stall Speed: 3600 RPM
• Transmission Compatibility: 4L60E 4L65E 4L70E
• Engine Compatibility: GM LS based engines
• Crank Pilot Diameter: 1.703 inch
• Bolt Circle: 10.75 inch 11.5 inch 11.062 inch LS
• Input Spline Count: 30 spline
• Lock-Up Compatible: Yes
• Anti Ballooning Flanged Hub: Yes
• Furnace Brazed: Yes
• Balanced: Yes
• Mounting Hardware Included: Yes

Transmission Based Fitment:

• GM 4L60E automatic transmissions

• GM 4L65E automatic transmissions

• GM 4L70E automatic transmissions

Engine Based Fitment:

• GM LS based engines

Warranty and Notes

• Warranty: 3 year limited
• Power Rating: Up to 1000 HP
• Intended Use: Performance street and street-strip
• Professional installation recommended

Why Choose FTI Performance

FTI Performance torque converters are built using race proven billet designs and advanced manufacturing processes. The Street Racer Lock-Up Series delivers an ideal balance of high stall performance, strong lock-up holding power, and long term reliability for modern LS powered GM vehicles.