How to Swap LS and LT Engines Into 1960-1998 Chevy and GM Trucks BookHow to Swap LS and LT Engines Into 1960 1998 Chevy and GM Trucks To perform a successful LS or LT engine swap into an older Chevy truck, proper planning, the right combination of parts, and the correct information is required. While this 160 page book covers the swapping process in detail, author Jefferson Bryant, also provides a helpful LS and LT guide to help you find the best option for your application LS or LT. Copyright 2023