1970 LT-1 Small-Block Engine Guide: Specs, Features, & More

1970 LT1 Small Block engine

1970 – 1972 LT-1 Corvette Small-Block Engine Ultimate Guide

Throughout the earliest years of Corvette design and development, a definite trend began to emerge. In almost every case, famed GM engineer, Zora Arkus-Duntov, would always find a way to ring every last ounce of horsepower out of an engine. Ever the perfectionist, Duntov relentlessly sought out new and innovative ways to bolster the Corvette’s output, in a bid for performance superiority.

There are perhaps few greater examples of Duntov’s ideology relating to engine design and development, than the 1970 LT-1 small-block. The LT-1 served as a revised version of GM’s famed 350 cubic-inch platform and is often heralded as one of the manufacturer’s most beloved small-block powerplants. With 370 horsepower on tap, it is not difficult to imagine why.

Members only$35 / year

Keep going. This is where it gets good.

CorvSport Membership is for people who’d rather spend an hour inside one engine option than skim ten headlines. The rest of this story — and every other one like it — is a few seconds away.

  • Every members-only story

    Deep history, market reports, buyer’s guides, and the full archive back to 2010.

  • No ads. None.

    The whole site reads like a magazine, on every device.

  • Every model year, 1953 to today

    Production numbers, VINs, RPO codes, colors, options — one page per year.

  • 30% off the shop

    Every CorvSport shirt and piece of merch, all year.

Join CorvSport — Keep Reading

$35 a year. Cancel anytime, no hoops.
Already a member? Sign in

BY CORVETTE PEOPLE, NOT A CORPORATION. Your membership keeps a small independent team of historians, photographers, racers and writers doing this.