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The FTI Performance 9.5in Street Racer SRL billet lock-up torque converter for 4L80E/4L85E transmissions is an LT 3800 hard-hit stall option built for high-stall street and race use. SRL parts include a CNC-machined billet front cover and a billet lock-up piston to reduce clutch wear. Paired with custom stator and pump layouts, furnace‑brazed and heli‑welded fins, severe‑duty sprague and an anti‑ballooning flanged impeller hub, it’s engineered for heavy-duty service.
FTI 9.5in 4L80E/4L85E Billet Lock-Up Street Racer Series - LT - 3800 Hard Hit Stall
