New proprietary tooling for 2018. accurate reproductions. colors, fonts and spacing on dials are factory correct, unlike others. does not have a visible needle stop like others. includes steel face plate support unlike OE and others. these all new tachometers are made for all ignitions: points, HEI or electronic conversion. *(MSD REQUIRES A FILTER). LS motor conversion no problem this tach will work for that too just flip the switch under the face plate. Before installation of tachometer. Installation instructions included (please read), by far the best tachometer on the market. Officially Licensed GM Restoration Parts by Instrument Sales and Service Inc. GM Part #: 6469383
