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1970 AMC Javelin data, information, pictures, VIN ID, technical and performance info

Due to the declining sales of the Javelin in 1969, AMC made some dramatic changes for the 1970 model year. The nose was made longer, and there were small changes in the front grille and bumper, and the tail lights were modified some. The interior went through some major changes as well. The dashboard was revised, with a machined silver overlay with a matching glove box. The SST had the wood grain overlay replacing the standard silver. Corduroy and leather were new options for seat materials. The Big Bad colors were one again available, but chrome bumpers were now an option on these. Also optional were the 1970 Rebel Machine silver Rally wheels.

Go Package
The Go Package was revised for the 1970 Javelin, making it stand out even more from the standard model. The engine options were the new 360 replacing the 343, or the same 390, similar to the previous years. The big news for the Go Package was that the ram air hood scoops were functional, and the late 1969 Handling Package was standard with this package.

Due to the major changes in the 1970 Javelin, AMC had to homologate the Javelin all over again. This meant they needed to build at least 100 production models of a car for sale, to be able to use that model in the Trans Am races. The Trans Am races were very popular in the late 1960’s and early 1970’s, somewhat like how Nascar is popular today.

All 100 Trans-Am Javelin models were painted striped colors of Hash Red, white, and blue. The color scheme matched the actual 1968 and 1969 Javelin race cars, but the 100 cars that were produced were a hard sell on the showroom floors. They were eye catching, but they were definitely a red flag for the police, and for street racers. The Trans-Am Javelin was a respectable street racer, but it could not hold up against big block muscle cars being offered by other car manufacturers, and the paint scheme was an easy target to find.

It’s not known how many of these 100 Trans-Am Replica Javelin’s still exist, but the ones that do exist have mostly been painted over. This is one of the rarest and most collectible Javelin models ever produced.

Mark Donohue Javelin SST
Mark Donohue was a very successful racer, winning three Trans Am championships between 1967 and 1971. He raced AMC cars in the Trans Am series races, and this new Javelin was designed for him to race. In January 1970, the Trans Am race rules changed from needing 100 cars to 2,500 street models to be able to race that year. This left AMC scrambling to reach the goal. They knew instantly that they would not reach that goal with the current paint scheme, so they decided to use Donohue’s name on a Javelin that could be ordered in any paint color, including the Big Bad colors. Donohue himself helped with some design considerations, such as the rear spoiler.

The new Donohue Javelin model line was a bit odd. All models were supposed to be the same, other than the interior and exterior colors; The only visible sign that it was a Donohue Javelin was to be the rear Donohue logo on the spoiler, and the special 360 engine. The Donohue model was to include the 360 four carb engine which was designed just for the Donohue (See the engine details below for more details), have the SST and Go Package, be a four speed or automatic floor shift, and feature the functional ram air. The only option that was supposed to be available was air conditioning, which was rare. However, some models got the 390, and two models even got the 304 engine. Others did not have the SST or Go Package, meaning the ram air was not functional. Some even had column shifters.

Donohue even bought a model for his mom to drive. There are probably more than 2,501 Donohue Javelin's around today, due to the fact that they are easy to counterfeit. The only visible differences are the rear spoiler and the Donohue label on it. You were able to purchase this spoiler over the counter at any AMC dealership, which many did. The main ailment over this is that there is no verifiable way to determine whether a Donohue Javelin is legit or not. There is no way to determine it through the VIN or body tag codes. The only real way to determine it is with the original window sticker.

 

1970 AMC Javelin Pictures 
Photo Credit :   Chris B. from Deerfield Beach., Florida; 1970 Javelin Mark Donohue SST - Big Bad Green

Description  1970 AMC Javelin MArk Donohue SST Big Bad Green

 

 


1970 AMC Javelin Engine Types, Specifications, and performance data

Engine
The standard 1970 Javelin engine was the 6 cylinder 232. The major change in the V8 engines was the dogleg head design. During Trans-Am teting and racing, AMC engineers determined that about 50% more volume of air could be forced through the heads under extreme racing conditions, if the exhaust port on the heads were L shaped instead of square shaped. A running production change for the 1970 AMC engines was the inclusion of a new cam, nicknamed the "white stripe". Insurance price hikes were hurting the sales of pony cars and muscle cars at this time, so AMC did not raise the advertised horsepower by much with the new cam, but in reality the performance was greatly increased after this change.

The Donohue Javelin had a redesigned 360 engine. The engine block had thicker webbing to allow four bolt mains, and could be more easily bored out. The engine was designed for street racing and did well, but the bigger diameter two bolt system worked better for drag racing where the RPM's were a lot higher.

Transmission
There were a dizzying number of transmission options, depending on the engine type. A three speed manual floor shift was standard with the 6 cylinder engine, and a column shift automatic was an option. The 304 V8 and 36 two barrel had either of the above listed shifters, or a floor shift automatic as well. The 360 four barrel had the options of a column or floor automatic, or the Warner Gear T-10 four speed manual w/Hurst shifter. The 390 had the floor automatic or the four speed. V8 rear axle gear ratios that were available were 2.87:1, 3.15:1, and 3.54:1 depending on the engine and transmission they were teamed with.

Group 19 Options
Group 19 options were available on the 1970 Javelin - read more about these options here.

 

232 6 Cyl

304 V8

360 V8

360 V8

390 V8

Horsepower 145 hp 210 hp 245 hp 290 hp 325 hp
Torque NA NA NA NA NA
Performance NA NA NA NA NA
Displacement 232 ci 304 ci 360 ci 360 ci 390 ci
Carburetor One 1bl One 2bl One 2bl One 4bl One 4bl
Compression 8.5:1 9.0:1 9.0:1 10.0:1 10.0:1
Cylinder Bore NA NA NA NA 4.165"
Cylinder Stroke NA NA NA NA 3.574"
# Produced NA NA NA NA NA
Engine Code E or F H or I N P X

1970 AMC Javelin Engine Number Identification

12

2

W

17

The engine code is stamped on a tag, located on the panel next to the distributor on 6 cylinder engines. On V8 engines the code is located on the front of the right valve cover.

12 = Year (1970)

2 = Month Built (1 - 12)

W = Engine Model (See table above for engine model code)

17 = Day Built






1970 AMC Javelin Decode Information

The 1970 AMC Javelin VIN ID is stamped on a stainless steel plate, and is located under the hood, welded to the right front fender.

A 0 M 7 6

5

X

0

00001





 
Manufacturer
A = American Motors Corporation
Year
0 = 1970
Transmission Type
A = 3 spd auto column
C = 3 spd auto console
M = 4 spd man floor
S = 3 spd man column (Standard)
Car Series
0 = Hornet
1 = Rebel
3 = AMX
4 = Gremlin
7 = Javelin
8 = Ambassador
Body Type
5 = 4 door sedan
6 = 2 door sedan
8 = 4 door wagon
9 = 2 door hardtop
Model
0 = Basic Hornet, Rebel, Gremlin
2 = Basic Ambassador
5 = Javelin, DPL, 4 passenger Gremlin
7 = SST, AMX

Engine

E = 232 6 Cyl - 1V
F = 232 6 Cyl - 1V
H = 304 V8 - 2V
I = 304 V8 - 2V
N = 360 V8 - 2v
P = 360 V8 - 4v
X = 390 V8 -4v
Assembly Plant
0-9 = Kenosha
Production #'s
Starting with 00001





1970 AMC AMX Data Plate Decode Information

The 1970 AMX Data Plate (or Body Number Plate) is rivited on the left front door. It is visible when the door is open, below the door lock.

BodyK068932
Model7079-5
Trim 
031 
Paint 
P39 




 
Body Code
K = Kenosha, WI
068932 = Production sequence
Model Code
7079-5 = Javelin
7079-7 = Javelin SST
Trim
031 = Black
033 = Blue
035 = Red
036 = Brown
 
 
Exterior Color
1A = Classic Black
2A = Big Bad Blue
3A = Big Bad Orange
4A = Big Bad Green
25A = Red, White, and Blue
39A = Matador Red
58A = Hialeah Yellow
72A = Frost White
79A = Bittersweet Orange Metallic
82A = Bayshore Blue Metallic
84A = Commodore Blue Metallic
85A = Sea Foam Aqua Metallic
86A = Mosport Green Metallic
87A = Glen Green Metallic
90A = Golden Lime Metallic
91A = Tijuana Tan Metallic
94A = Moroccan Brown Metallic
95A = Sonic Silver Metallic
 
 

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