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The FTI Performance 9.5in Street Racer SRL billet lock-up torque converter for 4L80E/4L85E transmissions is an LS-specific 3600 hard-hit stall unit engineered for heavy-duty street and race-style launches. SRL features a CNC-machined billet front cover and a billet lock-up piston to reduce premature clutch wear. With custom stator and pump designs, furnace‑brazed and heli‑welded fins, severe‑duty sprague and anti‑ballooning flanged impeller hub, it’s built for durability under severe use.
FTI 9.5in 4L80E/4L85E Billet Lock-Up Street Racer Series - LS - 3600 Hard Hit Stall
