DESCRIPTIONSPECIFICATIONMetricStandardEngine Type60° V-6 EngineNumber of Cylinders6Displacement 3.8L3.8 Liters 231 cu. in.Bore 3.8L96.0 mm 3.779 cu.in.Stroke87 mm3.425 in.Compression Ratio 3.8L-9.6:1Firing Order-1-2-3-4-5-6Compression Pressure-Minimum689.5 kPa100 psi.Cylinder Compression (Max. Difference Between Cylinders-25%DESCRIPTIONSPECIFICATIONMetricStandardCylinder Bore Diameter (Standard) 3.8L95.993-96.007 mm3.7792-3.780 in.Out of Round (Service Limits)0.076 mm0.003 in.Taper (Service Limits)0.051 mm0.002 in.Lifter Bore Diameter22.980-23.010 mm0.905-0.906 in.Deck Surface Flatness (Max.)0.1 mm0.004 in.DESCRIPTIONSPECIFICATIONMetricStandardConnecting Rod Journal Diameter57.979-58.005 mm2.2827-2.2837 in.Main Bearing Journal Diameter63.993-64.013 mm2.5194-2.5202 in.Journal Out-of-Round (Max.)0.025 mm0.001 in.Journal Taper (Max.)0.025 mm0.001 inEnd Play0.09-0.24 mm0.0036-0.0095 in.Wear Limit0.381 mm 0.015 in.Main Bearing Diametrical Clearance 1-2-3-40.011-0.055 mm0.0005-0.0022 in.Wear Limit0.076 mm0.003 in.DESCRIPTIONSPECIFICATIONMetricStandardBearing Clearance0.019-0.065 mm. 0.017-0.020 in.Wear Limit0.074 mm0.003 in.Side Clearance0.13-0.32 mm0.005-0.013 in.Wear Limit0.38 mm0.015 in.DESCRIPTIONSPECIFICATIONMetricStandardPiston Diameter 3.8L-Measured 33.01 mm (1.30 in) From Piston Top95.968-95.998 mm. 3.778-3.779 in.Clearance in Bore @ Size Location (New)-0.005-0.039 mm-0.0002–0.0015 in.Weight 3.8L426 ± 5 grams15.03 ± 0.1764 oz.DESCRIPTIONSPECIFICATIONMetricStandardTypePress Fit in Rod (Serviced as a Assembly)Clearance in Piston @ 21C (70°F)0.006-0.019 mm0.0002-0.0007 in.Clearance in Connecting RodInterference FitDiameter22.87-22.88 mm0.9007-0.9009 in.Length 3.8L71.25-71.75 mm2.805-2.824 in.DESCRIPTION SPECIFICATION Metric StandardRing End GapTop Compression Ring0.18-0.38 mm0.007-0.015 in.Second Compression Ring0.28-0.57 mm0.011-0.022 in.Oil Control (Steel Rails)0.23-0.78 mm0.009-0.030 in.Wear Limit-Compression Rings1.0 mm0.039 in.Wear Limit-Oil Control Steel Rails1.88 mm0.074 in.Ring Side ClearanceTop Compression Ring 3.8L0.030-0.069 mm0.0012-0.0027 in.Second Compression Ring 3.8L0.041-0.085 mm0.0016-0.0033 in.Oil Ring (Steel Ring)0.039-0.200 mm0.0015-0.0078 in.Wear Limit- Top Ring0.10 mm0.004 in.Wear Limit-2nd Ring0.13 mm0.005Wear Limit Oil Ring Pack 0.266 mm0.009Ring Width-Top Compression Ring 3.8L1.175-1.190 mm0.0462-0.0468Ring Width-2nd Compression Ring 3.8L1.46-1.49 mm0.0575-0.058 in.Ring Width-Oil Ring (Steel Rails) 3.8L0.435-0.510 mm0.017-0.020DESCRIPTIONSPECIFICATIONMetricStandardJournal Diameter #150.724-50.775 mm1.997-1.999 in. #250.317-50.368 mm1.9809-1.9829 in. #349.936-49.987 mm1.9659-1.9679 in. #449.530-49.581 mm1.9499-1.9520 in.Bearing Clearance-Diametrical0.025-0.101 mm0.001-0.004 in.Bearing Clearance (Max.Allowable)0.127 mm0.005 in.End Play0.254-0.508 mm0.010-0.020 in.Camshaft Bearing Diameter #150.800-50.8251.9999-2.0009 in. #250.393-50.419 mm1.9839-1.9849 in. #350.013-50.038 mm1.9690-1.9699 in. #449.606-49.632 mm1.9529-1.954 in.Exhaust Valve TimingCloses-3.8L (ATDC)-18°Opens-3.8L (BBDC)-46°Duration-3.8L-244°Intake Valve TimingCloses-3.8L (ABDC)-63°Opens-3.8L (ATDC)-1°Duration-3.8L-242°Valve Overlap-3.8L-17°DESCRIPTIONSPECIFICATIONMetricStandardTypeHydraulic RollerOutside Diameter22.949-22.962 mm0.903-0.904 in.Clearance in Block0.020-0.061 mm0.0007-0.0024 in.DESCRIPTIONSPECIFICATIONMetricStandardGasket Thickness (Compressed)0.65-0.75 mm0.0007-0.0024 in. DESCRIPTION SPECIFICATION Metric StandardFace Angle-Intake-45-45.5°Face Angle-Exhaust-45-45.5°Head Diameter-Intake47.87-48.13 mm1.88-1.89 in.Head Diameter-Exhaust35.37-35.63 mm1.39-1.40 in.Valve Lift (Zero Lash)-Intake and Exhaust-3.8L11.0 mm0.433 in.Valve Length-Intake125.84-126.6 mm4.95-4.98 in.Valve Length-Exhaust127.20-127.965.00-5.04 in.Valve Stem to Tip Height (valve tip to spring seat washer)-Intake48.1-49.7 mm1.89-1.95 in.Valve Stem to Tip Height (valve tip to spring seat washer)-Exhaust48.53-50.09 mm1.91-1.97 in. DESCRIPTION SPECIFICATION Metric StandardAngle-44.5-45°Run Out (Service Limits)0.0762 mm0.003 in.Width-Intake and Exhaust1.50-2.00 mm0.057-0.078 in. DESCRIPTION SPECIFICATION Metric StandardGuide Bore Diameter (Std.)6.975-7.00 mm0.274-0.275 in. DESCRIPTION SPECIFICATION Metric StandardIntake0.825-0.973 mm0.032-0.038 in.Exhaust1.565-1.713 mm0.061-0.067 in. DESCRIPTION SPECIFICATION Metric StandardIntake (Standard)6.935-6.953 mm0.2718-0.2725 in.Exhaust (Standard)6.906-6.924 mm0.2718-0.2725 in. DESCRIPTION SPECIFICATION Metric StandardIntake0.025-0.065 mm0.001-0.0025 in.Exhaust 0.059-0.094 mm0.002-0.0037 in.Max Allowable-Intake (Rocking Method)0.247 mm0.010 in.Max Allowable-Exhaust (Rocking Method)0.414 mm0.016 in. DESCRIPTION SPECIFICATION Metric StandardLength135.438 mm5.33 in. DESCRIPTION SPECIFICATION Metric StandardFree Length-Type A51.4 mm2.02 in.Free Length-Type B53.4 mm2.10 in.Wire Diameter Type A3.95-4.77 mm0.15-0.19 in.Wire Diameter Type B4.19-4.29 mm0.16-0.17 in.Number of Coils Type A7.52Number of Coils Type B7.25Spring Tension (Valve Closed) Type A376.4-424.4 N @ 41.9 mm84.6-95.6 lbs. @ 1.65 in.Spring Tension (Valve Open) Type A863.9-959.9 N @ 41.9 mm194.2-215.8 lbs. @ 1.65 in.Spring Tension (Valve Closed) Type B377-423 N @ 41.9 mm84.8-95.2 lbs. @ 1.65 in.Spring Tension (Valve Open) Type B880-962 N @ 30.91 mm197.9-216.3 lbs. @ 122 in. Installed Height41.1-42.7 mm1.61-1.68 in DESCRIPTION SPECIFICATION Metric StandardAt Curb Idle Speed* (Minimum with engine at operating temperature)34.47 kPa5 psiAt 3000 RPM205-551 kPa30-80 psiOil Filter By-Pass Valve Setting62-103 kPa9-15 psiOil Pressure Switch Actuating Pressure14-28 Kpa2-4 psi*If pressure is ZERO at curb idle, DO NOT run engine at 3000 rpm. DESCRIPTION SPECIFICATION Metric StandardClearance Over rotors-Inner and Outer0.10 mm0.004 in.Cover Out-Of-Flat (Max.)0.025 mm0.001 in.Inner Rotor Thickness7.64 mm0.301 in.Outer Rotor Thickness (Min)7.64 mm0.301 in.Outer Rotor Clearance (Max)0.039 mm0.015 in.Outer Rotor Diameter (Min)79.95 mm3.148 in.Tip Clearance Between Rotors (Max)0.20 mm0.008 in.