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UMI’s LS swap mounts for 1970–1974 F‑Body applications locate the LSx engine on the factory crossmember with stock crank height and a slotted design allowing 1" fore/aft adjustment. Made from precision laser‑cut 3/16" steel with greaseable polyurethane bushings to control vibration, the kit is race‑proven and ships with hardware. Designed to pair with UMI transmission crossmembers and made in the USA.
UMI Performance 70-74 GM F-Body LS Swap engine mount
