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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (3.3L V6 CNG - VIN [J]) >> Engine Specifications

Engine Specifications

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.
GENERAL ENGINE SPECIFICATIONS

Application Specification
Displacement 201 Cu. In. (3.3L)
Bore 3.66" (93.0 mm)
Stroke 3.19" (81.0 mm)
Compression Ratio 8.9:1
Fuel System CNG MFI
Horsepower @ RPM 162 @ 4800
Torque Ft. Lbs. @ RPM 194 @ 3600
CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS SPECIFICATIONS

Application In. (mm)
Crankshaft End Play
Standard .003-.009 (.08-.23)
Wear Limit .015 (.38)
Main Bearings
Journal Diameter 2.519 (63.98)
Journal Out-Of-Round .0010 (.025)
Journal Taper .0010 (.025)
Oil Clearance
Standard .0007-.0030 (.018-.076)
Wear Limit .004 (.102)
Connecting Rod Bearings
Journal Diameter 2.2830 (57.998)
Journal Out-Of-Round .0010 (.025)
Journal Taper .0010 (.025)
Oil Clearance
Standard .0007-.0030 (.018-.076)
Wear Limit .004 (.102)
CONNECTING RODS SPECIFICATIONS

Application In. (mm)
Side Play .005-.015 (.13-.38)
PISTONS, PINS & RINGS SPECIFICATIONS

Application Specification
Pistons
Clearance .0010-.0022 (.025-.056)
Diameter 3.6594-3.6602 (92.949-92.969)
Pins
Diameter .9007-.9009 (22.878-22.883)
Piston Fit .0002-.0007 (.005-.018)
Rod Fit (1)
Rings
No. 1 & 2
End Gap
Standard .012-.022 (.30-.56)
Wear Limit .039 (.99)
Side Clearance
Standard .0012-.0037 (.030-.094)
Wear Limit .004 (.10)
No. 3 (Oil)
End Gap
Standard .010-.039 (.25-.99)
Wear Limit .074 (1.88)
Side Clearance .0005-.0090 (.013-.229)
(1) Interference fit.
CYLINDER BLOCK SPECIFICATIONS

Application In. (mm)
Cylinder Bore
Standard Diameter 3.6610-3.6617 (92.989-93.007)
Maximum Taper .002 (.05)
Maximum Out-Of-Round .003 (.08)
VALVES & VALVE SPRINGS SPECIFICATIONS

Application Specification
Intake Valves
Face Angle 44 1/2°
Head Diameter 1.79" (45.5 mm)
Minimum Margin .031" (.79 mm)
Minimum Refinish Length 4.916" (124.87 mm)
Stem Diameter (1) .312-.313" (7.92-7.95 mm)
Valve Tip Height 1.950-2.018" (49.53-51.26 mm)
Exhaust Valves
Face Angle 44 1/2°
Head Diameter 1.476" (37.49 mm)
Minimum Margin .047" (1.19 mm)
Minimum Refinish Length 4.941" (125.50 mm)
Stem Diameter (1) .3112-.3119" (7.904-7.922 mm)
Valve Tip Height 1.950-2.018" (49.53-51.26 mm)
Valve Springs
Free Length 1.909" (48.49 mm)
Installed Height 1.622-1.681" (41.99-42.70 mm)
Pressure (2)
Valve Closed 95-100 @ 1.570 (43-45 @ 39.87)
Valve Open 207-229 @ 1.169 (94-104 @ 29.69)
(1) Specification is for standard valve. Valves are available with oversize valve stems of .005" (.13 mm), .015" (.38 mm) and .030" (.76 mm).
(2) Lbs. @ In. (kg @ mm).
CYLINDER HEAD SPECIFICATIONS

Application Specification
Maximum Warpage (1) .00075" Per 1.00" (.0191 mm Per 25.4 mm)
Valve Seats
Intake Valve
Seat Angle 45°
Seat Width .069-.088" (1.75-2.24 mm)
Maximum Seat Runout .002" (.05 mm)
Exhaust Valve
Seat Angle 45°
Seat Width .059-.078" (1.50-1.98 mm)
Maximum Seat Runout .003" (.075 mm)
Valve Guides
Intake Valve
Valve Guide I.D. .314-.315" (7.97-8.00 mm)
Valve Stem-To-Guide Oil Clearance
Standard .0010-.0030" (.025-.076 mm)
Wear Limit (2) .010" (.25 mm)
Exhaust Valve
Valve Guide I.D. .314-.315" (7.97-8.00 mm)
Valve Stem-To-Guide Oil Clearance
Standard .002-.006" (.05-.15 mm)
Wear Limit (2) .016" (.41 mm)
(1) Combined maximum total grind limit of cylinder head and cylinder block is .008" (.20 mm).
(2) Specification applies to measurement obtained by rocking valve stem in valve guide.
CAMSHAFT SPECIFICATIONS

Application In. (mm)
Camshaft Bearing I.D. (1)
No. 1 2.000-2.001 (50.80-50.83)
No. 2 1.984-1.985 (50.39-50.42)
No. 3 1.969-1.970 (50.01-50.04)
No. 4 1.953-1.954 (49.61-49.63)
End Play .005-.012 (.13-.30)
Journal Diameter (1)
No. 1 1.997-1.999 (50.72-50.77)
No. 2 1.980-1.982 (50.29-50.34)
No. 3 1.965-1.967 (49.91-49.96)
No. 4 1.949-1.952 (49.50-49.58)
Standard Oil Clearance .0010-.0030 (.025-.076)
(1) Numbering is from front of camshaft.
VALVE LIFTERS SPECIFICATIONS

Application In. (mm)
Bore Diameter .9051-.9059 (22.990-23.010)
Lifter Diameter (1) .9035-.9040 (22.949-22.962)
Oil Clearance .0007-.0024 (.018-.061)
(1) Standard diameter valve lifter is listed. Oversize valve lifters are available in .001" (.02 mm), .008" (.20 mm) and .030" (.76 mm) sizes.
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