Allstar Motor Mount Adapter, Bolt-On, Aluminum, Black, LS-Series Engines to GM 3-Bolt, Pair

Aluminum adapters allow bolting an early GM 3-bolt engine mount to the late model LS style block with a 4-bolt pattern. Adapters place the early mount in approximately the same location as found on the original SB/BB Chevy engines and also features optional holes for moving the engine forward up to 2-1/4" for additional firewall clearance. Sold in pairs and includes mounting hardware.