-3/8-18 NPTF-, Grand Prix, V8, Chevrolet small block, with factory gauges & aftermarket or 1981-up... see more-3/8-18 NPTF-, Grand Prix, V8, Chevrolet small block, with factory gauges & aftermarket or 1981-up cylinder heads which have a smaller sending unit hole (correct resistance and connection, produces accurate gauge display)
Grand Prix, V8 all Chevrolet 350 C.I. (THESE ARE REPRODUCTION BUT ARE NOT DATE CODED)Grand Prix, V8 all Chevrolet 350 C.I. (THESE ARE REPRODUCTION BUT ARE NOT DATE CODED)