Engine specific production specifications for 290 - 343 engines!

Click here for specifications for 360 - 401 engines.

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AMC Production Specifications:
These specifications were produced in the early seventies. I do not have current numbers at this time. But hope to soon.


ENGINE SIZE
Carb. Venturi:
Bore:
Stroke:
Bore Spacing:

Compression Ratio:


Horsepower (bhp@rpm):


Torque (lb-ft@rpm):



Connecting Rod Length:
Crank Journal --Main:
..............--Rod:
Rocker Arm Ratio:
Push Rod Length:

Lifters:

Intake Valve Head Diam:
Exhuast Valve Head Diam:

Valve Spring Load:
Cylinder Head Volume (cc):

Head Gasket Thickness:
Head Gasket Volume (cc):
Deck Clearance:
Swept Clearance Volume (ci):
Block Deck Height:
Firing Order for ALL Engines:
||290
||2V & 4V
||3.75
||3.28
||4.75

||9.0:1 2V
||10.0:1 4V

||200@4600 2V
||225@4700 4V

||285@2800 2V
||300@3200 4V
||

||5.875
||2.7472
||2.0944
||1.6
||7.767
||
||Hydraulic

||1.787
||1.406

||85-93@1.812
||54.43 66-68
||52.20 69
||.022
||5.51
||.060
||36.227
||9.175
||1-8-4-3-6-5-7-2
||304
||2V
||3.75
||3.44
||4.75

||8.4:1 71-72
||9.0:1 70

||*150@4200 72
||210@4400 70-71

||*245@2500 72
||300@2600 71
||305@2800 70

||5.875
||2.7472
||2.0944
||1.6
||7.800 70-71
||7.820 72
||Hydraulic

||1.787
||1.406

||85-93@1.812
||52.20 70, early 71
||58.92 Late 71, 72
||.028
||5.59
||.012
||37.994
||9.208
||
||343
||2V & 4V
||4.08
||3.28
||4.75

||9.0:1 2V
||10.2:1 4V

||235@4400 2V
||280@4800 4V

||345@2600 2V
||365@3000 4V
||

||5.875
||2.7472
||2.0944
||1.6
||7.767
||
||Hydraulic

||2.025
||1.625

||85-93@1.812
||52.89 67-68
||50.60 69
||.048
||10.95
||.060
||42.883
||9.175
||
*Note: 1972 and up specifications are SAE "net" figures measured with engine in the same condition as when installed in the car. Meaning that it had water pump, alternater, smog, power steering pump hooked up.