Authenticity reference

E58 360 engine identity

numbers matching · documented

1974 Plymouth Duster photographed as a 5.9-liter V8 car; VS29L4 records, not the visible badge or plate, establish factory Duster 360 identity 1974 Plymouth Duster 360

Reference Details

Common issue: A replacement 318 or later 360 represented as born-with because it is painted blue or carries the correct air-cleaner decal.
Confidence: documented
Correct value: The L-code/E58 record, installed 360 family, carburetor application, assembly identifiers, dates, and hardware should agree with the car's build record.
Where to check: VIN, fender tag, broadcast sheet, engine identifiers and dates, carburetor list/date, and restoration records

Cars With This Authenticity Marker

1 linked car page.

1974 Plymouth

1974 Plymouth Duster 360

VS29L4 Duster 360 two-door sport coupe

Sources & Documentation

Mopar Enthusiast Network / 440 Magnum Network 1974 carburetors

Hemmings 1974 Plymouth Duster 360 buyer's guide

Plymouth Division via XR793 1974 Plymouth Duster, Valiant, and Barracuda sales brochure

Classic Industries Mopar VIN and fender-tag decoder