Our motor mount adapter plates allow you to swap any LS engine into hundreds of 60's and 70's Chevrolet muscle car or hotrod. The plates are Precision cut to provide a secure fit to the block and motor mounts.They have been designed to allow 4 positions in order accomodate just about any set-up regardless of headers, pan or steering box. Paired with our high strength Zinc coated polyurethane motor mounts you have a sure winner. The mounts are standard 3 bolt style mounts. Hardware in included.