TCI Street Rodder Transmission Packages 371038P1

This is a complete, ready-to-install four-speed automatic package rated for 525 advertised horsepower, built on the Chevy bellhousing pattern with an automatic valve body and lockup compatibility, aimed at mild street performance and daily driving rather than competition use.

What's in the box

Unlike the bare transmissions elsewhere in this catalog, this package arrives already fitted with a torque converter, 12.000 inches across, tuned to a 1,700 rpm flash stall, plus a transmission cooler. A dipstick and 12 quarts of fluid round out the kit, so most of what you'd otherwise source separately is already covered. Thirty splines carry the input shaft, through an aluminum case with a natural finish and a stock-profile steel pan, also natural finish.

Why it drives the way it does

A performance improvement kit built into the automatic valve body firms up shifts without the harshness of a full manual setup, and both the transmission and torque converter go through triple testing to check internal pressures and shift quality before they ship. There's no trans-brake on this package, which fits its street-driving focus. Sold as a complete kit.

Do I need to buy a torque converter separately? No, a 12-inch converter with a 1,700 rpm stall ships as part of the kit. Is this built for racing? It's tuned for mild street performance and daily driving rather than competition launches.