Plastic automotive engine
Version one was based on Ford's 2.3-liter Pinto engine and weighed (vs. for its cast iron counterpart). It was designed to produce at 9200 rpm. It was composed of metal cylinder sleeves, metal combustion chamber tops, metal piston crowns, bearings, valves and seats, and a stock 2.3L Pinto crankshaft. Nearly everything else in the engine, including the block, rods and piston skirts, were made of glass reinforced Polyamide-imide thermoplastic resins manufactured at the time by Amoco Chemicals Co. The engine was never installed in a vehicle.
Ford Pinto
In 1974, the "OHC" I4 engine was introduced. This engine would be updated and modified several times, allowing it to remain in production into 1997. Among other Ford vehicles, a turbocharged version of this engine would later power the performance based Thunderbird Turbo Coupe, Mustang SVO, and the European-built Merkur XR4Ti.