Product Description
1971-1977 Chevy Vega Tach Circuit Board Small Round or Plug-Tab 4/8 Cyl
Replacement tachometer circuit board for 1971–1977 Chevy Vega factory tachometer applications. Covers both common Vega tach board styles (Small Round and Plug-Tab) and is supplied pre-calibrated based on the option you select.
Fitment:
- Chevy Vega — 1971–1977 (factory tachometer applications)
- Board styles supported: Small Round (typical 1971–1974) and Plug-Tab (typical 1975–1977)
Identify your tach style:
- Small Round board: Small round circuit board attached to the tach movement (typical 1971–1974)
- Plug-Tab board: Rectangular board on the back of the tach movement with nuts. Metal tabs for the harness connector (typical 1975–1977)
Required selection (choose 1):
- Small Round – 6000 RPM, 4-Cylinder
- Small Round – 6500 RPM, 4-Cylinder
- Small Round – 7000 RPM, 4-Cylinder
- Small Round – 6000 RPM, 8-Cylinder (engine swap-with compatible RPM signal feed)
- Small Round – 6500 RPM, 8-Cylinder (engine swap-with compatible RPM signal feed)
- Small Round – 7000 RPM, 8-Cylinder (engine swap-with compatible RPM signal feed)
- Plug-Tab – 7000 RPM, 4-Cylinder
- Plug-Tab – 8000 RPM, 4-Cylinder
- Plug-Tab – 7000 RPM, 8-Cylinder (engine swap-with compatible RPM signal feed)
- Plug-Tab – 8000 RPM, 8-Cylinder (engine swap-with compatible RPM signal feed)
Highlights:
- Pre-calibrated based on your selected option
- Plug-in installation — no soldering or special tools required
- Direct replacement for the original GM tach circuit board (matching the selected board style)
- Installation instructions included
- Manufactured in the USA with quality components
Before you buy: Select the option that matches (1) your board style (Small Round or Plug-Tab), (2) your tach’s RPM scale (6000/6500/7000/8000), and (3) the engine currently in the vehicle (4-cylinder or 8-cylinder swap).
Limitations: Intended for factory tachometer circuit board applications. Selecting the wrong board style, RPM range, or engine option may affect fit and calibration.
