-3/8-18 NPTF-, V8, Chevrolet small block, with factory gauges & aftermarket or 1981-up cylinder heads... see more-3/8-18 NPTF-, 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)
with factory gauges (2 required per car) Note: Located in in-line fuse holders on Front... see morewith factory gauges (2 required per car) Note: Located in in-line fuse holders on Front Light Harness