Steel Adjustable-Offset LS Mounts - Fits all Gen 3 style Chevy engines. Adjusts from 'front of engine in same location as small-block V8' to 'back of engine 3/4-inch rearward of small-block V8'; total adjustment range 2-inches. Use with CAC front clips and OEM frame adapters. Welded steel construction with black powder coat finish.