Check the listing for details. Vintage 1960's? Edelbrock Rear Engine Mount Plate Hydroplane? Jet Boat?. Condition: Used. Listed at 350.60 USD. The product is a vintage 1960's Edelbrock rear engine mount plate, designed for use in hydroplane or jet boat engines. This part is specifically manufactured by Edelbrock, known for producing high-quality automotive and marine components. The plate provides a secure and stable mounting point for the engine, ensuring proper placement and alignment for optimal performance in a hydroplane or jet boat. Perfect for restoring or customizing a vintage watercraft, this rear engine mount plate adds a touch of nostalgia and authenticity to the boat's design.The product is a vintage 1960's Edelbrock rear engine mount plate, designed for use in hydroplane or jet boat engines. This part is specifically manufactured by Edelbrock, known for producing high-quality automotive and marine components. The plate provides a secure and stable mounting point for the engine, ensuring proper placement and alignment for optimal performance in a hydroplane or jet boat. Perfect for restoring or customizing a vintage watercraft, this rear engine mount plate adds a touch of nostalgia and authenticity to the boat's design.