1978-1988 G-Body LS Gauge Components

Gauge parts for a 1978-1988 G-Body running an LS: a tach signal adapter so a traditional tachometer or shift light can read a distributorless LS, and an oil pressure adapter fitting that lets the engine take a traditional pressure gauge sensor.

Drives a traditional tach or shift light
Tach adapter sold without an LS harness
Takes a traditional oil pressure sensor

Mounts, crossmember and headers for the car are on the 1978-1988 G-Body LS swap page. Gauge parts for every chassis are under LS swap gauge components.

G-Body LS gauge parts

Tachometer signal

Tach Adapter

Oil pressure gauge

Oil Pressure Adapter Fitting

What each G-Body gauge part does

Tach Adapter: turns the signal from a distributorless ignition into one a traditional tachometer or shift light can use.
Oil Pressure Adapter Fitting: lets an LS block accept a traditional pressure gauge sensor.

G-Body gauge fitment notes

BRP lists the tach adapter on its own, without the BRP LS harness, for custom wiring jobs.
The tach adapter works with factory or aftermarket tachometers of the traditional type.
Neither gauge part is built only for the G-Body. The same two parts sit on the gauge pages for other BRP chassis.
The G-Body install guide covers mounts, headers and the crossmember, not gauge wiring.

Part details come from the BRP product listings. Chassis background is in the 1978-1988 G-Body LS install guide.

1978-1988 G-Body LS gauge FAQ

Can I keep a traditional tachometer in my LS swapped G-Body?

Yes. The Tach Adapter is made for distributorless ignition systems like the LS, and it drives a factory or aftermarket traditional tachometer or a shift light.

Does the G-Body tach adapter come with a wiring harness?

No. BRP offers it here without its LS harness, for custom applications. Plan your own wiring to the tach.

How do I run an oil pressure gauge on the LS in my G-Body?

Thread in the Oil Pressure Adapter Fitting. It lets the LS use a traditional pressure gauge sensor, so you can keep a conventional gauge setup.

Are these gauge parts specific to the 1978-1988 G-Body?

No. Both parts are general LS swap parts that BRP also lists for other chassis. This page groups them for G-Body builds.