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Authenticity reference

Engine and transmission path

numbers matching · documented

Reference Details

Common issue
A replacement Packard engine or transmission may be mechanically correct but not original to the car. · 1956 Studebaker Golden Hawk Packard 352
Confidence
documented · 1956 Studebaker Golden Hawk Packard 352
Correct value
K-prefix engine number for T85 overdrive or S-prefix engine number for Twin Ultramatic, reconciled to the production order · 1956 Studebaker Golden Hawk Packard 352
Where to check
Boss at the top-front of the block beside the oil filler tube, transmission, and production order · 1956 Studebaker Golden Hawk Packard 352
Common issue
Later 304, 360, 401, changed carburetion, 390 swap, four-speed conversion, or SST dress-up represented as born-with equipment · 1968 AMC Rebel
Confidence
documented · 1968 AMC Rebel
Correct value
Code-, casting-, date-, and record-supported 232, 290, 343, or running-year 390 with the allowed induction and manual, overdrive, four-speed, or Shift-Command application · 1968 AMC Rebel
Where to check
VIN engine and transmission symbols, engine valve-cover tag and displacement casting, carburetor, intake, exhaust, emissions hardware, gearbox, controls, dates, and records · 1968 AMC Rebel
Common issue
A replacement engine, transmission, floor shift, or current axle represented as born-with equipment · 1971 AMC Gremlin
Confidence
documented · 1971 AMC Gremlin
Correct value
232 or 258 one-barrel six reconciled to the permitted manual or Shift-Command path, axle ratio, emissions equipment, dates, and records · 1971 AMC Gremlin
Where to check
Serial and build evidence, engine stamps and castings, induction, transmission case and controls, axle, emissions labels, and component dates · 1971 AMC Gremlin
Common issue
A replacement 360, four-speed conversion, or current carburetor treated as born-with proof. · 1976 Dodge Aspen R/T
Confidence
documented · 1976 Dodge Aspen R/T
Correct value
G-code 318 with its documented manual/overdrive/automatic path or optional 360 with TorqueFlite, supported by the complete car record. · 1976 Dodge Aspen R/T
Where to check
VIN engine character, body plate E/D codes, build record, engine and transmission identifiers and dates, and service history. · 1976 Dodge Aspen R/T
Common issue
A replacement 360, four-barrel conversion, or four-speed swap treated as born-with proof. · 1976 Plymouth Volare Road Runner
Confidence
documented · 1976 Plymouth Volare Road Runner
Correct value
G-code 318 with its documented manual/overdrive/automatic path or K-code 360 two-barrel with TorqueFlite, supported by the complete car record. · 1976 Plymouth Volare Road Runner
Where to check
VIN engine character, body plate codes, build record, engine and transmission identifiers and dates, and service history. · 1976 Plymouth Volare Road Runner
Common issue
Later 5.0 swap, four-barrel, T-5, exhaust, or 5.0 badges represented as born-with 1982 H.O. equipment · 1982 Ford Mustang GT
Confidence
documented · 1982 Ford Mustang GT
Correct value
VIN- and record-supported 2.3, 3.3, 4.2, or 5.0 H.O. engine with its allowed manual or automatic transmission, induction, emissions, exhaust, cooling, and dates · 1982 Ford Mustang GT
Where to check
VIN engine character, certification and emissions labels, engine identifiers, carburetor and intake, gearbox tag and case, controls, exhaust, cooling, dates, and Ford records · 1982 Ford Mustang GT

Cars With This Authenticity Marker

6 linked car pages.

Sources & Documentation