1970 AMC AMX 390

Sports car powered by AMC 390 V-8.

1970 AMC AMX 390 Go Package in Big Bad Orange with C-stripe; visual context, not individual-car proof.

Build pathway Factory two-seat AMX 390, not a Javelin AMX or dealer conversion

Engine 390-cubic-inch AMC V-8 rated at 325 hp for 1970 with four-barrel carburetion

Go Package Available with the 390 and tied to ram air, power front discs, handling, cooling, and tire upgrades

Reported production 2,533 1970 AMX 390 cars reported: 1,632 four-speeds and 901 automatics

Proof boundary Verify AMX body, 390 evidence, transmission, axle, Go Package hardware, paint, trim, and interior per car

Story

The 1970 AMC AMX 390 is the last year of the original two-seat AMX, with a one-year front and rear redesign, a stronger 390 rating, and the same short-wheelbase identity that makes the model stand apart from the later Javelin-based AMX. The page treats the 390 car as a factory-built AMX performance branch, with the Go Package, Shadow Mask, C-stripe, Big Bad colors, Machine wheels, and transmission choices recorded as verifiable equipment rather than assumptions from badges or repaint choices.

Verification Notes

Treat Go Package, Shadow Mask, C-stripe, Big Bad paint, Machine wheels, and transmission claims as evidence-backed options. Photos show representative 1970 AMX 390 context and are not proof for any individual car.

**1970 AMC AMX 390 Go Package in Big Bad Green; visual color and package context.**CZmarlin via Wikimedia Commons · Public domain

Specs

Car type: Sports car
Seats: 2
Body: Two-seat hardtop coupe
Engine: 390 CID AMC V-8 with 4-barrel carburetion and 1970 325 hp rating
Horsepower: 325 hp published 1970 390 AMX rating
Torque: 420 lb-ft Old Cars Weekly figure; some summaries report 430 lb-ft
Carburetion: Motorcraft 4300-series four-barrel reference with ram-air Go Package context

Equipment

Functional ram-air hood openings with 1970 power-blister hood context
Borg-Warner T10 four-speed with Hurst linkage or optional Shift-Command automatic
Twin-Grip limited-slip differential and axle ratio evidence to verify per car
Go Package power front disc brakes, handling package, heavy-duty cooling, and F70-14 raised-white-letter tires
Magnum 500 road wheels standard; 15x7 Machine wheels available as a mid-year option
Shadow Mask finish, C-stripe, Big Bad colors, and other AMX colors require tag or record support
Woodgrain dash, center console, Rim Blow steering wheel, and high-back clamshell bucket seats

1970 AMC AMX 390 engine-bay context with ram-air hardware; visual context, not individual-car proof.CZmarlin via Wikimedia Commons · Public domain

Linked Parts

Price history

Values

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

Original Price

Base MSRP $3,395

1970 AMC AMX base MSRP (1970)
Corroborating public summary; verify against dealer order book before using for pricing analysis.
AMC AMX
Option price $384

1970 AMX 390 Go Package (1970)

AMC AMX
Option price $32

C-stripe (1970)

AMC AMX
Option price $52

Shadow Mask exterior finish (1970)

AMC AMX

Market Observations

Auction sale $40,000

Jul 16, 2021 · Bring a Trailer
1970 AMX A0M397X164634 in Golden Lime Metallic with a 390 V8, four-speed manual, limited-slip differential, power steering, and front disc brakes. · modified · unknown Bring a Trailer records the $40,000 completed sale. PerTronix ignition, converted air conditioning, air-adjustable rear shocks, and stainless exhaust make this a modified observation.
1970 AMC AMX 390 four-speed A0M397X164634
High bid $25,251

Sep 6, 2019 · Bring a Trailer
Documented 1970 AMX A0M397X181056 with a 390 V8, four-speed manual, window sticker, build sheet, and 26,000 miles shown. · modified · unknown The $25,251 reserve-not-met high bid did not complete a sale. The car had been repainted from Golden Lime Metallic with black stripes to gold with yellow stripes and had an installed battery disconnect switch.
1970 AMC AMX 390 four-speed A0M397X181056
Auction sale $38,500

May 18, 2018 · Mecum Indy
Factory 390/four-speed 1970 AMX A0M397X160316 in Bayshore Blue with a white C-stripe, power steering, factory gauges, headers, and dual exhaust. · modified · unknown Mecum records the $38,500 completed sale. The headers and dual exhaust make this a modified observation rather than a stock reference car.
1970 AMC AMX A0M397X160316

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 Borg-Warner T10 four-speed manual with Hurst linkage
Factory transmission Shift-Command three-speed automatic transmission

Options

1970 AMX 390 engine reference.Classic Muscle · Reference illustration

390 390 CID 4-barrel V-8 optional · performance · The 390 was the high-output 1970 AMX engine branch and is the subject of this page.
Go Package AMX 390 Go Package optional · performance · Go Package records connect ram air, power front discs, F70-14 tires, handling package, heavy-duty cooling, and 390 availability.
Shadow Mask Shadow Mask exterior finish optional · appearance · Satin black hood/front-fender/window-surround treatment with silver striping; verify paint and trim per car.
C-stripe AMX C-stripe optional · appearance · C-stripe appears in factory and Commons contexts; the stripe alone is not proof of engine or Go Package.
Big Bad Big Bad color option optional · appearance · Big Bad Orange, Green, and Blue continued for 1970 with chrome bumpers rather than 1969 color-keyed bumpers.

Paint

**1970 AMC AMX 390 Go Package in Commodore Blue with Machine wheel context.**CZmarlin via Wikimedia Commons · Public domain

P3 Big Bad Orange optional · solid
P4 Big Bad Green optional · solid
P1 Big Bad Blue optional · solid
72A Commodore Blue Metallic factory · metallic
1970 AMX catalog colors factory · unknown

Production

1970 AMX drivetrain reference.Classic Muscle · Reference illustration

1970 AMC AMX total total · 4,116 · reported
1970 AMX 390 total by engine · 2,533 · reported
1970 AMX 390 four-speed by transmission · 1,632 · reported
1970 AMX 390 automatic by transmission · 901 · reported
1970 AMX 360 total by engine · 1,583 · reported

Authenticity

1970 AMX chassis reference.Classic Muscle · Reference illustration

Two-seat AMX identity 1970 AMX two-seat hardtop coupe, not later Javelin AMX body · VIN/body evidence, title, door data plate, body structure, AMX-specific trim · fraud detection
390 engine evidence 1970 390 CID 4-barrel AMC V-8 evidence consistent with AMX 390 records · VIN/engine code context, engine stamp, block/casting/date evidence, paperwork · numbers matching
Go Package hardware Ram air, power front discs, handling/cooling/tire context and matching documentation when claimed · Air cleaner/hood hardware, brake hardware, suspension/cooling parts, tire/wheel evidence, build records · trim correctness
Transmission path Borg-Warner T10 four-speed with Hurst linkage or Shift-Command automatic matching records · Transmission case/tag, shifter, console, linkage, documentation · date correctness
Paint and appearance options Shadow Mask, C-stripe, Big Bad color, and Machine wheel claims match tag, photos, or records · Door data plate, original photos, paint layers, wheel/date evidence, restoration records · trim correctness