1964-1967 A-Body LS Gauge Components

Putting an LS in a 1964-1967 Chevelle, GTO, Cutlass or Skylark and keeping a dash tach? These two parts handle it: a signal adapter for the distributorless LS so a traditional tachometer or shift light reads rpm, plus a fitting that takes a traditional oil pressure gauge sensor.

Works with a factory or aftermarket tach
No LS harness in the box
Fits a traditional pressure sensor

Frame brackets, mounts, crossmember and headers for the early A-Body are on the 1964-1967 A-Body LS page. The full gauge lineup lives under LS swap gauge components.

1964-1967 A-Body LS gauge parts

Tachometer and shift light

Tach Adapter

Oil pressure sender fitting

Oil Pressure Adapter Fitting

How the two early A-Body gauge parts work

Tach Adapter: built for distributorless ignition, it outputs a signal your traditional tach or shift light can count.
Oil Pressure Adapter Fitting: screws into the LS so a conventional pressure gauge sensor has a home.

Early A-Body gauge notes

This tach adapter listing leaves out the BRP LS harness, so plan the wiring to the dash yourself.
BRP sells the same two gauge parts for its other LS chassis; nothing here is cut only for the 1964-1967 cars.
The early A-Body guide is about brackets, crossmember, oil pan and header fit. It does not cover gauge wiring.

Part details are from the BRP product listings. Chassis details are in the 1964-1967 A-Body LS install guide.

1964-1967 A-Body LS gauge FAQ

Can my 1964-1967 Chevelle or GTO keep its tachometer after an LS swap?

A traditional tach needs a conventional signal, and the LS has no distributor. The Tach Adapter makes that signal for a factory or aftermarket traditional tach, or for a shift light.

What wiring comes with this tach adapter?

None. This version is offered without the BRP LS harness, for custom setups.

What do I need to run a traditional oil pressure gauge on the LS?

The Oil Pressure Adapter Fitting lets the LS accept a traditional pressure gauge sensor, which then feeds your gauge.