The 1st Generation Sierra propelled GMC into the 21st century as its best-selling vehicle. With optional LS power, the Sierra can be just as capable at the track as it is the worksite. Whether you're building an all-around street machine, off-roader, or track weapon, Holley has the parts you need to make your dream a reality.

Ignition, Coils, Spark Plug Wires, Distributors, and more from MSD, Holley, Accel, and Mallory! Incredible new exciting products from MSD like the Ultra 6AL, tune-up kits and so much more.