1955-57 CHEVY CAR KIT THAT INCLUDES ALL HARDWARE AND MOUNTS TO INSTALL YOUR HOT NEW ENGINE AND TRANS INTO YOUR CLASSIC BELAIR. ENGINE MOUNTS WILL ACCOMMODATE BOTH SMALL AND BIG BLOCK AND ARE AVAILABLE IN STOCK LOCATIONS OR 3/4 FORWARD FOR THOSE RUNNING AN HEI DISTRIBUTOR & TRANSMISSION CROSSMEMBER WILL ACCOMMODATE MOST ALL GM TRANSMISSIONS MAKING THIS KIT A GREAT BUY! RUBBER MOUNTS ARE INCLUDED AVAILABLE FOR SEAMED OR SEAMLESS WHEN IDENTIFYING A SEAMED OR SEAMLESS FRAME, YOU MUST LOOK AT THE TOP OF THE FRAME JUST BELOW THE FIREWALL AND REARWARD OF THE UPPER CONTROL ARM. IF IT IS SMOOTH IT IS SEAMLESS, IF IT IS WELDED IT IS SEAMED.