Go Pack; Big Bad Green; 401-V8 727-Auto; 3.91 Posi; Hi-Perf

Price: - Item location: Cambridge, Minnesota, United States
  • Make: AMC
  • Model: Javelin
  • SubModel: 7079-7
  • Type: Sedan
  • Trim: SST
  • Year: 1970
  • Mileage: 108484
  • VIN: A0C797X186283
  • Color: Big Bad Green - 04A
  • Engine size: 401 CID currently, was 390
  • Number of cylinders: V8
  • Power options: Power Steering
  • Fuel: Premium / Racing
  • Transmission: Automatic
  • Drive type: Rear Wheel Drive
  • Interior color: Black - 061E
  • Drive side: Left-hand drive
  • Options: Go Package, Big Bad Package, 3.91:1 Rear Gear Ratio, Posi-Traction Differential, Full Vinyl Roof, Tilt Steering
  • Vehicle Title: Clear
  • Want to buy? Contact seller!

1970 AMC Javelin SST

1970 Javelin SST; Go Pack; Big Bad Green; 401 CID; Auto; 3.91 Posi; Hi-Perf

"Do Not miss this Opportunity" Many High-Performance items in the details below;

Please see signed2016 appraisal in the Photos section, also see additional pictures below;

This car has great potential as an excellent core for the current plan as a Resto-Mod or a quality numbers matching original. This car was originally equipped with a 390 CID, Automatic w/Air Conditioning. The A/C system was removed except for under dash assembly, vents and controls. The original transmission was replaced with the stronger late model 727 Torqueflite and modified for High Performance including a high stall converter. The original Engine Block, Heads and Crank etc. are available separately.

Pictures are showing the original Big Bad Green paint and black C-Stripes. The prior owner claimedthat the engine bay and door jambs were retouched.Please note that production figures are not recorded for a 1970 Javelin SST with the Big Bad Green paint. It should be reasonable to conclude thatbased on 68 & 69 Javelin and 68, 69 & 70 AMX numbers, that production was low, maybe a couple hundred at most! Production figures show 19714 total in SST trim produced; 2730 of them with 390-V8 and part of those in auto-transmissions

The last 48 years of the usual nicks, scratches, dings etc. are present. I believe it to be a great "20-Footer!" (This is Nota Show Car) Minor rust is present in the usual places and “untouched” providing unobstructed inspection. Most of the minor rust is behind rear wheels on lower fenders and is still solidly backed, however other suspect areas are rust free, like the undercarriage and front fender troughs. In the time I’ve owned it, the car saw warm dry storage during winter and harsh weather conditions. Last winter the car saw its first cold storage winter. History believed to be originally purchased in California, saw Denver CO, CT, Albany NY and now central MN.

The drivability of the car is fun for knowledgeable experienced drivers and demands respect. Automatic Transmission is operated through a B&M Mega Shifter with a reverse pattern. The shift sequence is manual only and sequential up and down with reverse lockout. Electric Fuel pump on/off switch is independent from ignition. Brakes are manual (Power vacuum module was removed) and requires additional leg pressure. Setup, components are meant for performance business. (This is not an easy cruising vehicle)

My “In progress” mechanical list includes; a) Improving braking, maybe a new proportioning valve and or restoring Power module. b) Front of car starts a vibration above 65 mph; Isolated vibration to front spindle & hub / bearing miss-match, haven’t decided what to do. c) Electric fuel pump makes lite noise, but noise increases, is inconsistent and seems to be heat buildup related from proximity to exhaust and or it could be inadequate grounding. Tried solutions including a rebuild, heat shielding and improving rubber mount isolation. I was always intending to go with electronic fuel injection and thought this would dissolve along with “d” d) Carburetor fuel bowl needles leak with any pressure above ½-psi. e) As many do, the interior dash pad has curled up. f) Headliner fabric separated from shell and was removed. g) Dash panel separation near glove box. h) Replaced passengers window trim felt and door pull but still have not replaced drivers side yet, have the parts. i) Fine Tuning next; Once decided on fuel octane, timing check and adjustment, setting thermostat for new fans, etc.

Stock Configuration: (disclosure; unable to verify all without build sheet / dealer window sticker)

Go Package; Big Bad Package; Group 19 Options;

390-V8 (325 H.P.)

Auto Trans


Ram Air 4-Barrel carburation with Power Blister Hood

Big Bad Green paint

C-stripe scheme


3.91:1 Gears

Power Steering

Power Disk Brakes

Heavy duty suspension

Heavy duty cooling

Dual Exhaust

Handling package

Full Vinyl roof

Corduroy interior panels

New / near new or Rebuilt List:(In order, latest first)

Radiator& Electric Fans; Custom Exhaust from Headers to Mufflers; Modified performance Ram Air Cleaner Shroud; Engine, Transmission, Stall Converter & Scatter Shield;Balanced Driveline; HD U-Joints; Distributor housing; Carburetor;Programmable Ignition with Crankshaft trigger; Front Wheels & Tires;Rear performance one-piece Axles; Race bucket Seats (adjustable, folding backs);Carpet (molded);Brakes;Front brake upgraded Calipers hubs and spindles;Steering Wheel; Gauges;Electric Fuel Pump;Suspension components & rubbers with modified Springs

Current Specifications:

Block type -- AMC 401 V-8, valley paint and Internal oil line installed for additional volume supply; Main Studs
Cylinder heads – Modified including Head Studs; AMC cast-iron ''dog-leg'' OHV #321 2993; (57.92cc nominal)
Displacement -- 406.9 cubic inches
Bore x Stroke -- 4.195 (.030 over) x 3.680 inches
Compression ratio – 10.5:1 estimate (lost notation on cc volume after heads reworked)
Pistons -- Wiseco forged aluminum flat top Pro Tru Series #5117H3
Connecting rods -- Aftermarket forged

Crankshaft – Stock forged turned .020 / .020, Assembly balanced

Horsepower [Chassis dyno / 93 pump] @ RPM -- ~400 (estimated) [Prior similar build 344 @ 5500]

Torque [Chassis dyno / 93 pump] @ RPM -- ~500 (estimated) [Prior similar build 532 @ 3000]

Camshaft type – Competition Cams Solid tappet 108 lobe center #10-610-5
Duration --274/282 degrees, intake/exhaust (at 0.050) [304/320 advertised]
Lift -- .629/.624-inch, intake/exhaust
Valvetrain -- Manley stainless 2.080-inch intake valves and 1.740-inch exhaust valves, Aluminum Roller 1.6:1 ratio rocker arms, Moly Push Rods, Custom Valve Girdles, Comp Cams mechanical flat-tappet lifters & bee hive 26120-16 valve springs, premium Tru-roller timing chain.
Fuel system -- Edelbrock aluminum Torker manifold, four-barrel Holley HP series 750-CFM carburetor, Holley Blue Max electric fuel pump with ½’ lines from pickup to carb
Lubrication system – Deep sump Milodon Oil Pan, oil pump pressure spring replaced to lower high pressure to 50 psi maximum
Ignition system – New Stock distributor w/ custom Crankshaft Trigger conversion and Accel Race 8.8mm spark plug wires, Performance Programmable Computer w/MSD 6A box with Coil and Tach adapter
Exhaust system – Super Competition 1-7/8” headers, custom 3.0-inch dual exhaust into Walker
Dynomax mufflers, 2-1/2” dual mustang 5.0 LX tail pipes

Type -- 1972 Chrysler Torqueflite three-speed automatic (High-Performance rebuild) with deep pan and B&M Mega shifter kit w/ 4-ft racing shift cable, Hi-Tech trans cooler and Scatter Shield

Torque Converter – 3800 stall speed (rebuilt)


Type -- AMC Model 20 rear modified;

- Welded axle tubes

- Refitted with one-piece Moser Axles

- Posi-traction

Ratio -- 3.91:1 gear

Type – Stock system

Front -- AMC 1979 Concorde conversion; 11-inch rotors
Rear -- AMC Javelin 10-inch drums

Every piece of suspension was replaced in 2003 including bushings, hoses, lines and hardware;

Front – Heavy Duty Springs installed and lowered
Rear – Heavy Duty Leaf springs shackles and bushings

Wheels & Tires;
Wheels: American Racing AR61 Outlaw 1
Front -- 15 x 7 inches
Rear -- 15 x 8 inches
Tires: BFGoodrich Radial TA
Front -- P225/60R15
Rear -- P265/50R15

Available parts: (Not Included)

390 Block (Original used)

390 Heads (50.60 cc Original, now modified used)

390 Crankshaft (Turned)

Stock forged rods

390/401 Pistons TRW L2313 Flat Top (Modified w/ deeper valve reliefs)

Flex plates, 4-spd Flywheels and Dampeners

1970 AMC AMX black face large tach Instrumentation Cluster

Original Rim Blow steering wheel center

2 Extra AR61 Outlaw 1 Wheels 15 x 8 with tires P275/50R15

AM/FM Radio


Fantastic Original Body & Original Big Bad Green paint “Great 20-Footer!” (Not a Show Car)

Updated HP 401-V8 & 727 Auto w/ Mod Drivetrain & High-Performance Parts;

Rocket ship! Great Fun, but demands drivers respect.

Currently a Street/Strip Driver - "In Progress" Resto-Mod

108484 miles on odometer; about 2500 miles in last 14 years; about 300 miles since rebuild!

Life’s plans stalled / changing, loss of warm storage.The Opportunity is now!

Please Note:

This Car is sold “As Is”, No Warranties, No Guarantees. Buyer to arrange and pay shipping or local pick-up. I’ve provided as much information with detail as possible. It is still the responsibility of buyer / bidder to ask questions, review and inspect or simply become comfortable with a purchase prior to bidding. The vehicle is advertised locally / elsewhere and reserve the right to cancel listing. Vehicle has a MN title and Lien Release.

Additional Photo Gallery - click to enlarge