1968-1972 A-Body LS Gauge Components

For a 1968-1972 Chevelle, GTO, Cutlass or Skylark with an LS, BRP offers two gauge parts. The Tach Adapter feeds a traditional tach or shift light from the distributorless LS ignition, and the Oil Pressure Adapter Fitting takes a traditional pressure sensor.

Tach adapter for distributorless LS
Custom wiring, no harness
Oil pressure sensor adapter fitting

Frame brackets, crossmembers, headers and high-mount drives for these cars are on the 1968-1972 A-Body LS page. The gauge components hub covers every BRP chassis.

1968-1972 A-Body LS gauge parts

Tach adapter

Tach Adapter

Oil pressure fitting

Oil Pressure Adapter Fitting

A-Body gauge parts explained

Tach Adapter: gives a traditional factory or aftermarket tach, or a shift light, a usable rpm signal from the LS.
Oil Pressure Adapter Fitting: provides a port for a traditional pressure gauge sensor on the LS.

1968-1972 A-Body gauge notes

Expect to wire this Tach Adapter yourself; BRP offers it without its LS harness.
Neither listing names A-Body models, so the parts are not tied to one body style.
The A-Body LS install guide does not include gauge information.

Taken from the BRP product listings. Chassis install steps are in the 1968-1972 A-Body LS install guide.

1968-1972 A-Body LS gauge FAQ

Will my 1968-1972 Chevelle tach work after an LS swap?

A traditional tach needs a converted signal from the distributorless LS. The BRP Tach Adapter provides it, for the tach or a shift light.

Do I get a coil connection harness with this tach adapter?

No. This listing is the adapter alone, for custom applications.

Which BRP part lets a traditional oil pressure gauge read an LS in an A-Body?

The Oil Pressure Adapter Fitting, which lets a traditional pressure gauge sensor be used with the LS.