Reference Details
- Availability
- factory
- Category
- performance
- Code
- HEI
- Confidence
- documented
- Notes
- HEI entered production during the model year; distributor, harness, coil, build date, engine application, bulletins, and PHS evidence must agree.
Option reference
HEI High Energy Ignition running change
performance · factory
Cars With This Option
1 linked car page.
1974 Pontiac
1974 Pontiac Grand Prix
K57 two-door hardtop coupe