System Specifications

CYLINDER BLOCK SPECIFICATION
Cylinder Bore Diameter
(Standard) 3.31L 92.993-93.007 mm (3.661-3.6617 in.)
(Standard) 3.8L 95.993-96.007 mm (3.7792-3.780 in.)
Out of Round
(Service Limits) 0.076 mm (0.003 in.)
Taper
(Service Limits) 0.051 mm (0.002 in.)
Lifter Bore Diameter 22.980-23.010 mm (0.905-0.906 in.)
Deck Surface
Flatness (Max.) 0.1 mm (0.004 in.)

CRANKSHAFT
Connecting Rod Journal Diameter 57.979-58.005 mm (2.2827-2.2837 in.)
Main Bearing Journal Diameter 63.993-64.013 mm (2.5194-2.5202 in.)
Journal Out-of-Round (Max.) 0.025 mm (0.001 in.)
Journal Taper (Max.) 0.025 mm (0.001 in)
End Play 0.09-0.24 mm (0.0036-0.0095 in.)
Wear Limit 0.381 mm (0.015 in.)
Main Bearing Diametrical Clearance 1-2-3-4 0.011-0.055 mm (0.0005-0.0022 in.)
Wear Limit 0.076 mm 0.003 in.

CONNECTING RODS
Bearing Clearance 0.019-0.065 (0.017-0.020 in.)
Wear Limit 0.074 mm (0.003 in.)
Side Clearance 0.13-0.32 mm (0.005-0.013 in.)
Wear Limit 0.38 mm (0.015 in.)

PISTONS
Piston Diameter 3.3L-Measured 39.8 mm (1.567 in) From Piston Top 92.968-92.998 mm (3.660-3.661 in.)
Piston Diameter 3.8L-Measured 33.01 mm (1.30 in) From Piston Top 95.968-95.998 mm (3.778-3.779 in.)
Clearance in Bore @ Size Location (New) -0.005-0.039 mm (-0.0002-0.0015 in.)
Weight 3.3L 362 ± 5 grams (12.77 ± 0.1764 oz.)
Weight 3.8L 426 ± 5 grams (15.03 ± 0.1764 oz.)

PISTON PINS
Type Press Fit in Rod (Serviced as a Assembly)
Clearance in Piston @ 21C (70°F) 0.006-0.019 mm (0.002-0.0007 in)
Clearance in Connecting Rod Interference Fit
Diameter 22.87-22.88 mm (0.9007-0.9009 in.)
Length 3.3L 67.25-67.75 mm (2.648-2.667 in.)
Length 3.8L 71.25-71.75 mm (2.805-2.824 in.)

PISTON RINGS
Ring End Gap
Top Compression Ring 0.18-0.38 mm (0.007-0.015 in.)
Second Compression Ring 0.28-0.57 mm (0.011-0.022 in.)
Oil Control (Steel Rails) 0.23-0.78 mm (0.009-0.030 in.)
Wear Limit- Compression Rings 1.0 mm (0.039 in.)
Wear Limit-Oil Control Steel Rails 1.88 mm (0.074 in.)
Ring Side Clearance
Top Compression Ring 3.3L 0.030-0.080 mm (0.0012-0.0031 in.)
Top Compression Ring 3.8L 0.030-0.069 mm (0.0012-0.0027 in.)
Second Compression Ring 3.3L 0.030-0.095 mm (0.0012-0.0037 in.)
Second Compression Ring 3.8L 0.041-0.085 mm (0.0016-0.0033 in.)
Oil Ring (Steel Ring) 0.039-0.200 mm (0.0015-0.0078 in.)
Wear Limit- Top Ring 0.10 mm (0.004 in.)
Wear Limit-2nd Ring 0.13 mm (0.005 in.)
Wear Limit Oil Ring Pack 0.266 mm (0.009 in.)
Ring Width-Top Compression Ring 3.3L 1.46-1.49 mm (0.0575-0.058 in.)
Width-Top Compression Ring 3.8L 1.175-1.190 mm (0.0462-0.0468 in.)
Ring End Gap
Ring Width-2nd Compression Ring 3.3L and 3.8L 1.46-1.49 mm (0.0575-0.058 in.)
Ring Width-Oil Ring (Steel Rails) 3.3L 0.435-0.490 mm (-.017-0.019 in.)
Ring Width-Oil Ring (Steel Rails) 3.8L 0.435-0.510 mm (0.017-0.0200)