-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)
engine side, (includes heater wiring) ****CUSTOMER MUST SUPPLY A DONOR HARNESS WITH A USABLE FIREWALL... see moreengine side, (includes heater wiring) ****CUSTOMER MUST SUPPLY A DONOR HARNESS WITH A USABLE FIREWALL GROMMET. PHONE-IN ORDER ONLY; PLEASE DO NOT ORDER THIS ITEM ONLINE.****