The FTI Performance 9.5-inch Street Racer billet torque converter for TH350/TH400 GM applications is a 3800 rpm hard-hit stall model built to handle above-average power. In-house engineering yields TIG-welded, furnace-brazed fins, a heavy-duty race sprag and a hardened steel impeller. Non-lockup SR Series units include Triple Torrington bearings and a billet front cover; each converter is pressure-checked and computer-balanced for quality.
FTI 9.5in GM Street Racer Series Converters Sprague Type - 3800 Hard Hit Stall