Swap Block™ Mock Up LS Engine Block | GF-EJ-LS-DIY

The ORIGINAL Lightweight Steel LS Swap Block™ Engine: Gen III LS, Gen IV LS Years: 1997-2020 Our patent-pending swap block uses our unique tab-and-slot design to provide accurate mounting positions of engine accessories and bolt-ons. This distinctive design is lightweight and comes disassembled for ease of shipping and storage. Precision formed returns on all weight-bearing components and tight tolerance slots create a rigid and accurate representation of the LS engine block compared to bolt-together types. One tool accomplishes accurate placement of a GM LS engine into the chassis build of your choice. Easily positioned by hand, the days of slinging an engine on a crane in and out of your build are over. It's designed to bolt to your transmission while also permitting the attachment of oil pan, motor mounts, headers, water pump and intake. Save time and money and work more safely. Durable steel construction resists heat from welding, so unlike foam blocks, custom motor mounts can be