Authenticity reference

401 engine evidence

numbers matching · reported

1971 AMC Javelin AMX 401 in Mustard Yellow; exact-model exterior context, not individual-car proof. 1971 AMC Javelin AMX 401

Reference Details

Common issue: 360 or later replacement engine represented as original 401
Confidence: reported
Correct value: 1971 401 CID 4-barrel AMC V-8 evidence consistent with a 401 Javelin AMX claim
Where to check: Engine tag/stamp, block/casting/date evidence, engine bay details, build records, paperwork

1 linked car page.

1971 AMC

Factory Javelin AMX performance package, not a dealer conversion and not the earlier two-seat AMX body

American Motors via xr793 1971 AMC Full Line

American Motors via Auto Catalog Archive 1971 AMC Javelin brochure