Authenticity reference

428 Cobra Jet component identity

numbers matching · reported

1968 black Shelby Mustang GT500KR engine; representative 1968 Shelby GT500KR 1968 Shelby GT500KR engine bay context, not proof of any individual car's originality. 1968 Ford Mustang Shelby GT500KR

Reference Details

Common issue: Non-CJ big-block components substituted during restoration
Confidence: reported
Correct value: 428 Cobra Jet engine family; component-level dates and part numbers require registry/build-sheet follow-up
Where to check: Engine block, heads, intake, carburetor, distributor and related tags/castings

Cars With This Authenticity Marker

1 linked car page.

1968 Ford

1968 Ford Mustang Shelby GT500KR

Shelby GT500KR special-edition Mustang

Sources & Documentation

Mustang Club of America 1968 Shelby Concours Judging Rules (2023 PDF)

Mustang 428 Cobra Jet Registry 428 Cobra Jet component identification resources