-3/8-18 NPTF-, V8, Chevrolet small block, with factory console gauges & aftermarket or 1981-up cylinder... see more-3/8-18 NPTF-, V8, Chevrolet small block, with factory console gauges & aftermarket or 1981-up cylinder heads which have a smaller sending unit hole (correct resistance and connection, produces accurate gauge display)
-reproduction-, (mounts to voltage regulator, connects to ground tab on regulator)-reproduction-, (mounts to voltage regulator, connects to ground tab on regulator)