1970 Plymouth GTX 440 Six Barrel

Muscle car powered by Chrysler 440 Six Barrel RB V8.

1970 Plymouth GTX 440+6 hardtop from reviewed Commons media; strongest visual match for the target configuration.

Model year 1970

Body style GTX two-door hardtop; convertible body style was discontinued for GTX

Engine 440 CID Six Barrel RB V-8, three Holley two-barrel carburetors

Reported Six Barrel production 678 GTX hardtops in a reference 440 Six-Pack production table

Story

1970 Plymouth GTX 440 Six Barrel

The 1970 Plymouth GTX 440 Six Barrel is tracked here as the V-code version of Plymouth's upscale B-body performance hardtop. GTX remained above Road Runner in trim and standard equipment, while the convertible body style was gone for GTX in 1970.

The powertrain boundary is clear enough for a complete public page: Plymouth's 440 Six Barrel used three Holley two-barrel carburetors, was available for Road Runner and GTX, and was rated at 390 horsepower and 490 lb-ft. The standard GTX engine remained the 440 four-barrel Super Commando, so this page treats the Six Barrel as the optional V-code factory configuration rather than a separate model line.

Production is recorded conservatively. Hagerty's sale reference reports 7,748 total 1970 GTX models, while the 440 Magnum Network table reports 678 Plymouth GTX two-door hardtops with the 440 Six-Pack/Six Barrel engine and notes that transmission breakdown information is unavailable. Those numbers are useful guideposts, not a substitute for factory production microfilm or a registry audit.

Authenticity guidance stays document-first. Photos, hood callouts, auction copy, and show captions are context. A specific car still needs RS23 GTX identity, V-code 440 Six Barrel evidence, transmission and axle package records, body/paint/stripe codes, and supporting fender tag or broadcast-sheet documentation.

**1970 Plymouth GTX exterior context from reviewed Commons media.**Bull-Doser via Wikimedia Commons · Public domain

Price history

Values

Nominal dollars from original price sheets, auction archives, and approved value references.

Original Price

A verified original price is not yet available for this car.

Market Observations

High bid $180,000

Mar 21, 2026 · Mecum Glendale
Four-speed V-code GTX RS23V0E124904 recorded by CLASSIC.COM as a modified car offered at Mecum Glendale. · modified · unknown CLASSIC.COM records the no-sale high bid, exact VIN, date, amount, modified classification, four-speed transmission, and 41,354-mile true-mileage-unknown reading. Condition remains unknown because the archive summary is not an independent inspection.
1970 Plymouth GTX RS23V0E124904 market record
High bid $46,000

Jun 4, 2025 · Hagerty Marketplace
Automatic V-code GTX RS23V0E130523 with numbers-matching drivetrain claims, one repaint in its original Rallye Red, and disclosed cosmetic imperfections. · survivor · good Hagerty records the reserve-not-met high bid, exact V-code VIN and decode, date, amount, automatic transmission, one repaint, and seller claims about the original drivetrain. Good reflects the disclosed presentation and imperfections, not an independent inspection.
1970 Plymouth GTX 440 Six-Barrel auction result, RS23V0E130523
Auction sale $110,000

Mar 31, 2023 · Mecum Glendale
Four-speed V-code GTX RS23V0G203224 presented with the 440 Six Barrel configuration. · unknown · unknown Mecum records the completed result, exact V-code VIN, date, amount, 440 6-BBL, and four-speed configuration. Restoration and component-originality claims were not sufficiently explicit for a stronger build-state or condition classification.
1970 Plymouth GTX, Glendale 2023, lot F127
Auction sale $59,500

Oct 21, 2021 · Bring a Trailer
Four-speed V-code GTX RS23V0A173893 with a replacement 440 Six Barrel engine, Chrysler Registry letter, and production broadcast sheet. · modified · good Bring a Trailer records the completed sale, exact VIN, date, amount, replacement engine, four-speed and Dana axle, and supporting Registry and broadcast-sheet records. It is classified as modified and is not a numbers-matching benchmark.
1970 Plymouth GTX 440+6 4-Speed, lot 57,840
Auction sale $82,500

May 18, 2018 · Mecum Indianapolis
Four-speed V-code GTX RS23V0G150962 with one 1980s repaint, A33 Track Package, and added rear spoiler and longitudinal stripe. · modified · good Mecum records the completed result, exact V-code VIN, date, amount, 440 Six Barrel and four-speed configuration, repaint, axle package, and added appearance equipment. It is classified as modified so the added stripe and spoiler are not treated as factory evidence.
1970 Plymouth GTX, Indianapolis 2018, lot F96

Values move with paperwork, originality, options, condition, venue, and body style. High bids and guide values are labeled separately from completed sales.

Reference records

Options, Colors & Components

Source-backed details for trim, chassis, production, and authenticity.

Transmission

Factory transmission 4-speed manual
Factory transmission TorqueFlite A727 3-speed automatic

Options

Source-document visual for reviewed 1970 Plymouth GTX 440 Six Barrel powertrain evidence.Classic Muscle · Reference illustration

V-code 440 Six Barrel engine option optional · performance · The 440 CID Three 2-barrel V-8 was available for Road Runner and GTX and rated at 390 hp/490 lb-ft.
N96 Air Grabber hood factory · appearance · 1970 Air Grabber references describe the vacuum-operated forward-facing scoop; a specific car still requires tag/broadcast evidence.
D21 4-speed manual transmission optional · performance · Transmission-code alias used as authenticity context; verify on the individual car's tag, broadcast sheet, and transmission stamping.
D32 TorqueFlite A727 automatic transmission optional · performance · Hagerty's reference car is decoded as a V-code automatic example; this record is not proof for other cars.
A32/A33/A34 Performance axle package family optional · chassis · Axle-ratio/package details are carried as reported enthusiast-reference context pending a normalized 1970 Plymouth order-guide source.

Paint

**1970 Plymouth GTX with Air Grabber and 440 Six-Pack hood markings; visual context only.**Sirboxxer via Wikimedia Commons · CC BY-SA 3.0

FE5 Rallye Red factory · solid
EV2 Tor Red factory · solid
FK5 Burnt Orange factory · metallic
FJ5 Limelight factory · solid
FC7 In Violet factory · metallic
FY1 Lemon Twist factory · solid
EB5 Blue Fire factory · metallic
TX9 Black factory · solid
EW1 White factory · solid

Production

Source-document visual for reviewed 1970 Plymouth GTX production and body-style references.Classic Muscle · Reference illustration

1970 Plymouth GTX, all engines total · 7,748 · reported
1970 Plymouth GTX 440 Six Barrel / Six-Pack two-door hardtop by engine · 678 · reported

Authenticity

Source-document visual for reviewed 1970 Plymouth GTX paint and trim references.Classic Muscle · Reference illustration

GTX hardtop identity RS23 1970 Plymouth GTX two-door hardtop identity; no GTX convertible body style for 1970 · VIN/body identification, fender tag, broadcast sheet, title history, and body trim evidence. · fraud detection
V-code Six Barrel engine 440 CID Three 2-barrel V-8 / V-code 440 Six Barrel configuration · VIN fifth character, fender tag, broadcast sheet, engine pad, carburetor numbers, intake casting, and original paperwork. · numbers matching
Transmission and axle consistency Four-speed or A727 automatic records must align with the axle package and drivetrain stampings. · Fender tag, broadcast sheet, transmission stamping, axle tag/housing, driveshaft, and restoration documentation. · numbers matching
Air Grabber and hood callouts N96 Air Grabber and 440+6 hood markings require tag, broadcast-sheet, or known restoration evidence for an individual car. · Fender tag, broadcast sheet, hood hardware, restoration invoices, and period photos. · trim correctness
Paint and trim codes Exterior color, stripe, vinyl-roof, seat, and console claims require the fender tag or broadcast sheet. · Fender tag, broadcast sheet, door decal, hidden paint, interior trim evidence, and restoration records. · trim correctness

Still Researching

rear axle Factory code-guide page P39 now supports A32/A33/A34/A36 package codes, ratios, Sure Grip state, and automatic/four-speed applicability for 440-6BBL; a complete normalized order-guide extraction is still needed before replacing or merging the legacy axle rows.
paint colors Hamtramck's available 1970 Plymouth color and trim scan index explicitly notes that GTX color and trim pages are missing.

Codes & names