If you have a high-horsepower build in the works and are looking for a robust General Motors transmission to drop in it, then the automaker’s SEMA 2019 announcement may be of interest to you.
The automaker debuted its new SuperMatic 6L80E six-speed automatic transmission at the show, which it says “offers a technologically advanced balance of performance and efficiency when matched with Chevrolet Performance’s LS and LSX crate engines.”
This is essentially a strong, more robust version of the HydraMatic 6L80E transmission found in a number of rear-wheel-drive GM production vehicles, but “enhanced with specific internal components that contribute to a higher-output torque rating” of 650 pound-feet. This is a 45-percent increase over the regular-production six-speed HydraMatic 6L80E transmission, making it a good choice for high-horsepower builds, like those featuring one of GM’s supercharged Small Block crate engines.
The SuperMatic 6L80E transmission also features a “deep” 4.02 first-gear ratio, making it a good partner for powerful motors that may spin the tires easily from a standstill. The 0.67 ratio top gear also helps to reduce engine speed on the highway, preventing the engine from revving unnecessarily high and wasting fuel.
This transmission is part of GM’s growing family of “Connect & Cruise” systems, which are designed to easily pair with a wide array of Chevrolet Performance crate engines. A detailed chart in the Chevrolet Performance catalog outlines matched components and their part numbers, making it easier for shoppers to find an engine and transmission combo that easily pairs.
“Connect & Cruise systems eliminate the guesswork in selecting the right engine-and-transmission combination for your project,” said Chevrolet Performance director Kris Mayer. “Once you’ve selected the engine, our factory-matched combinations match it with a Chevrolet-recommended transmission and identify the necessary controllers, harnesses and other supporting components you need to help get it all installed and running quicker—and with the confidence it’s the right combo for your classic vehicle.”
The SuperMatic 6L80E transmission will be available to order from the 2020 Chevrolet Performance catalog.
*HydraMatic 6L80E transmission shown