Ebay, LS1 adapters.

new Hooker design eBay Motors: Hooker 12611 LS1 Engine Swap Adapter Plates JEGS (item 200297233935 end time Feb-08-09 17:58:16 PST)

probably the most common design eBay Motors: LS1 LS6 CONVERSION MOTOR MOUNTS ADAPTER PLATES (item 390028725268 end time Feb-10-09 15:36:41 PST)

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