An EFI System so easy and powerful you’ll think it’s alive! Simply bolt it on, feed it a few basic answers and let Holley LS EFI take control of your ride!

The GM LS engine has quickly become the high-performance standard in the performance aftermarket. Holley and Hooker have partnered together to offer the most versatile and complete LS swap kits on the market so you can install the GM LS engine into your favorite chassis! These swap kits have been engineered by Holley for a easy bolt-in engine swap where all the parts work together as a fully engineered system.

Dual Plane, Single Plane, Lo-Ram, and Hi Ram Intakes designed for power!

Accessory Drive Brackets, Drive Components and Complete Kits

LS Swap Oil Pans

LS engines can benefit greatly from and upgraded throttle body! We offer many styles of billet throttle bodies from 85, 90mm all the way to our massive 105mmR for maximum airflow!

LS & LT specific nitrous kits from NOS!

Application specific Radiators for popular LS Swap Platforms

EFI Conversion Fuel Tanks

These parts are designed for the GM Gen III/IV LS series of engines. These parts are available for most common plumbing applications on these engines.