

Specifications
- Brand
- FTI Performance
- Part #
- SRLS48082
- UPC
- 887753823120

FTI 9.5in 4L80E/4L85E Billet Lock-Up Street Racer Series - LS - 4000 Hard Hit Stall
$1195.71
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FTI 9.5in 4L80E/4L85E Billet Lock-Up Street Racer Series Torque Converter for LS engines with a 4000 RPM stall speed.
Key Features
- Fits 74+ vehicle make/model combinations, including Chevrolet, GMC, and Cadillac models.
- 9.5-inch diameter billet lock-up torque converter designed for LS engines.
- Features a 4000 RPM 'Hard Hit' stall speed for aggressive performance applications.
- Computer-designed and CNC-machined billet front cover and lockup piston for improved durability.
- Furnace-brazed and heli-welded fins ensure robust internal construction.
- Includes a severe-duty sprague for reliable engagement and an anti-ballooning flanged impeller hub.
Product Details
If you're looking to get the most out of your LS-powered vehicle with a 4L80E or 4L85E transmission, a high-performance torque converter is key. This FTI Performance Street Racer Series converter is built for serious street use and racing, featuring a 4000 RPM stall speed designed to match aggressive camshafts and rear-end gear ratios. It's a popular choice for drivers who want improved acceleration and a more responsive feel off the line, fitting a wide range of vehicles from classic trucks to modern SUVs.
FTI builds these converters with durability in mind. The front cover and lockup piston are CNC-machined from billet aluminum, which means they're strong and resist wear, unlike some stock or lesser aftermarket units. The internal fins are furnace-brazed and heli-welded for maximum strength, and it includes a severe-duty sprague for reliable engagement. This construction makes the converter virtually indestructible under demanding conditions. Each converter is custom-built to your specific engine and driving style, ensuring it performs exactly how you need it to.
This converter is designed for LS engines and is compatible with 4L80E and 4L85E transmissions. It's a substantial upgrade for vehicles like the Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD, and Cadillac Escalade. Remember to consult your transmission builder or FTI Performance for specific recommendations regarding your build to ensure optimal performance and longevity.
Specifications
- Brand
- FTI Performance
- Manufacturer Part #
- SRLS48082
- UPC
- 887753823120
Frequently Asked Questions
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FTI 9.5in 4L80E/4L85E Billet Lock-Up Street Racer Series - LS - 4000 Hard Hit Stall


