mustang ii      
MVMA Specifications Form
Passenger Car
Car Line     Mustang II     
Model Year     1978    Issued        Revised (o)      
 Engine Displacement
 
140
(2300 cc)
170.8
(2800 cc)
302-V8
Engine - General
Type (Inline, V, Flat)In-Line, OHCV, OHVV, OHV
Total dressed engine wt. dry338 (man.) 308 (auto.)442 (man.) 425 (auto.)614 (man.) 542 (auto.)
No. of cylindersFourSixEight
Bore3.7813.664.00
Stroke3.1262.703.00
Piston displacement, cu. in.140170.8302
Bore spacing (C/L to C/L)4.1734.754.38
Cyl. No. system
(front to rear)
L. Bank 4-5-65-6-7-8
R. Bank 1-2-31-2-3-4
Firing Order1-3-4-21-4-2-5-3-61-5-4-2-6-3-7-8
Cylinder Head MaterialCast Iron
Cylinder Block MaterialCast Iron
Cylinder block deck height8.37818.08-18.098.206
Number of
mtg. points
frontTwo
rearOne
Engine installation angle3° 43'
Recommended fuel leaded, unleaded         Unleaded
Cylinder Head Volume (cm³)61.343.667.5 - 70.5
Head Gasket Thickness
(Compressed)
.043.046 - .053.047 (.063 Calif.)
Head Gasket Volume (cm³)8.278.50510.07 (13.5 Calif.)
Deck Clearance (minimum)
(above or below block)
0.007 (above).043 (below).0005 (below)
Minimum Combustion
Chamber Volume (cm³) (a)
76.860.2 78.9

Engine - Pistons
MaterialAluminum Alloy with Steel Struts
Description and finishFull Skirt = Cam Ground Full Skirt = Cam Ground (Lead Coated)Cast Autothermic, Slipper Skirt Cam Ground & Tin Plate
Weight (piston only) oz.18.41 - 18.62 (c)17.2521.44
Clearance
(limits)
Top Land.0295 - .0411.0218 - .0235.0344 - .0420
Skirt top.0014 - .0028.0020 - .0036.0018 - .0026
Skirt bottom.0014 - .0022.0009 - .0021-
Ring groove
diameter
No. 1 ring3.352 - 3.3623.282 - 3.2743.548 - 3.558
No. 2 ring3.352 - .3.3623.282 - 3.2743.548 - 3.558
No. 3 ring3.340 - 3.3503.286 - 3.2783.592 - 3.602
(a) Total Clearance Volume
(b) At Centerline and 90° to Axis of Pin Hole
(c) 17.53 - 17.74 (Lima engine)
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