The LT1, along with its more powerful stablemate, the LT4, raised the bar for performance-oriented small-blocks until the introduction of the LS1 in 1997. The LT1/LT4 engines are powerful, relatively lightweight, and affordable. They powered Chevrolet's legendary Impala SS (and thousands of similar police cars), Corvettes, and Camaros and remain viable choices for enthusiasts today. This book investigates every component of these engines, discussing their strong and weak points and identifying characteristics. Upgrades and modifications for both improved power production and enhanced durability are described and explained in full.