Chevrolet Turbo-Thrift engine

The Chevrolet Turbo-Thrift is a straight-six built by the Chevrolet division of General Motors from 1962 to 2001. The whole series is commonly called Turbo-Thrift, although the name was first used on the 230 cubic inch version that appeared in 1963. It replaced the Stovebolt with a design that had seven main bearings in place of four, was considerably smaller and weighed roughly 100 pounds less, and it matched the bore spacing of the Chevrolet small-block V8. The first use was the 194 cubic inch Hi-Thrift in the 1962 Chevy II, Chevrolet passenger cars took the 230 the next year, and Chevrolet and GMC trucks used it from 1963 through 1988. Studebaker, Checker and Pontiac also fitted it, and a 153 cubic inch four-cylinder version served the Chevy II and Nova until 1970. The straight-six left full-sized Chevrolets in 1973 and returned when the B-body was downsized in 1977, and Brazil built it for the Opala and other vehicles.