Classic Muscle
Search cars, engines, parts...

Search Classic Muscle

Enter at least two characters to search the archive.

Enter at least two characters to search the archive.

Authenticity reference

Intake manifold engineering number and date

date correctness · reported

Reference Details

Common issue
Later, non-CJ, service, or reproduction intake represented as original assembly-line equipment without date support.
Confidence
reported
Correct value
The common Cobra Jet cast-iron intake engineering number cited is C8OE-9425-C, with a rear date code that should precede the vehicle build date.
Where to check
Behind the carburetor mounting area for the engineering number and at the rear of the intake for the date code.

Cars With This Authenticity Marker

1 linked car page.

Sources & Documentation