Quanity : 1 left bracket + 1 right bracket + 8 M10 bolts (1x Mount set) Application: For chevy 1973-1998 trucks and other cars that use the clam shell Work with all LS serise engines(4.8L,5.3L,5.7L,6.0L,6.2L) Color: Black Warranty : 2 Year Condition : New Material: heavy-duty steel, waterproof and rustproof, it can also extend the use time. Description: Used for installing a new LS engine into the older vehicles for GMC Vehicles with clamshell mounts. 2 sets of mounting hole, offer your stock positon or 1" offset. To lowers the center of gravity, and achieves 3 degrees of motor angle Without the need for adaptor brackets. Easy to install, no Cutting, drilling or welding need.