![]() Other Key LS1 Specs Throttle Body, Fuel Injectors, Oil Pan Specs & More ( Summit Racing’s Paul Spurlock and Brian Nutter contributed to this article.) GM LS1 Engine Specs The first engine on the list is the first GM LS-the 5.7L LS1 that appeared in the 1997 Chevy Corvette. Summit Racing has created a series of comprehensive guides for each engine in the LS family, so engine builders and tuners can have a handy reference for their projects. ![]() The aftermarket is strong, crate engines are available, and used motors are often cheaply sourced through junkyards. These motors are capable of making a lot of horsepower, and respond well to upgrades like turbos, superchargers, high-flow cylinder heads, intake systems, cams, and nitrous oxide. Since LS and Vortec engines are so common, they’ve become the go-to performance and swap engines of the modern era. Mechanically similar, GM’s LS and LS-based Vortec engines wound up on almost every branch of the GM family tree: Chevy, Pontiac, GMC, Cadillac, Buick-heck, even Saab, Hummer, and Isuzu got some LS love. The LS1 engine specs and information here is for the stock LS1 engine. 3 small block engine from General Motors used in cars from 1997-2004.
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