Reference Details
- Common issue
- Later, earlier, service, or non-Cobra Jet manifolds installed without reconciling the car's scheduled/build date and exhaust-spacer configuration.
- Confidence
- reported
- Correct value
- C8OZ-9430-C passenger-side manifold with added reinforcement is listed from early 1969 model year to December 1969; C9OZ-9430-C passenger-side manifold is listed from December 1969 and eliminates the exhaust spacer.
- Where to check
- Passenger-side Cobra Jet cast-iron exhaust manifold casting/engineering identification, reinforcement detail, spacer interface, and date context.