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Engine Mechanical Specifications

WARNING: This page is about a different car, the 2002 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE MECHANICAL SPECIFICATIONS

Application Specification
Metric English
General Data
  Engine Type 90° V-6
  Displacement 231 cu in
  Liter (VIN) 3.8L(K), (1)
  RPO L36, L67
  Bore 96.52 mm 3.8 in
  Stroke 86.36 mm 3.4 in
  Compression Ratio (VIN K) 9.4:1
  Compression Ratio (VIN 1) 8.5:1
  Firing Order 1-6-5-4-3-2
Lubrication System
  Oil Capacity with Oil Filter Change 4.25 L 4.5 qt
  Oil Capacity without Oil Filter Change 3.75 L 4 qt
  Oil Pressure @ Operating Temperature (1850 RPM) Using 10W-30 Oil 414 kPa 60 psi min
  Oil Filter Type Throw Away Element and Can
  Gear Pocket Depth 11.71-11.75 mm 0.461-0.4625 in
  Gear Pocket Diameter 89.10-89.20 mm 3.508-3.512 in
  Inner Gear Tip Clearance 0.152 mm 0.006 in
  Outer Gear Diameter Clearance 0.203-0.381 mm 0.008-0.015 in
  End Clearance 0.025-0.089 mm 0.001-0.0035 in
  Valve-to-Bore Clearance 0.038-0.076 mm 0.0015-0.003 in
Type of Lubrication
  Main Bearings Pressure
  Connecting Rods Pressure
  Piston Pins Splash
  Balance Shaft Bearing - Front Splash
  Balance Shaft Bushing - Rear Pressure
  Camshaft Bearings Pressure
  Timing Chain Splash
  Cylinder Walls Splash
  Oil Pump Type Gerotor
  Oil Pressure Sending Unit Electrical
  Oil Intake Stationary
  Oil Filter System Full Flow
Cylinder Bore
  Diameter 96.5 mm 3.8 in
  Out-Of-Round Maximum 0.0254 mm 0.001 in
  Taper 0.0254 mm 0.001 in
Piston (VIN K)
  Used Piston Clearance (41 mm from Top of Piston) 0.050-0.091 mm 0.0020-0.0036 in
  New Piston Clearance (41 mm from Top of Piston) 0.010-0.051 mm 0.0004-0.0020 in
Piston (VIN 1)
  Used Piston Clearance (41 mm from Top of Piston) 0.0193-0.0997 mm 0.0008-0.0039 in
  New Piston Clearance (41 mm from Top of Piston) 0.0207-0.0437 mm 0.0008-0.0017 in
Piston Ring Groove Depth
  Top Compression 4.019-4.146 mm 0.158-0.163 in
  2nd Compression 4.214-4.341 mm 0.0166-0.171 in
  Oil Control 3.814-3.941 mm 0.150-0.155 in
Piston Ring End Gap
  Top Compression 0.25-0.46 mm 0.010-0.018 in
  2nd Compression 0.58-0.84 mm 0.023-0.033 in
  Oil Control 0.254-0.762 mm 0.010-0.030 in
Piston Ring Side Clearance
  Top Compression 0.033-0.079 mm 0.0013-0.0031 in
  2nd Compression 0.033-0.079 mm 0.0013-0.0031 in
  Oil Control 0.023-0.201 mm 0.0009-0.0079 in
Piston Ring Width
  Top Compression 1.176-1.197 mm 0.0463-0.0471 in
  2nd Compression 1.476-1.497 mm 0.0581-0.0589 in
  Oil Control 1.854-2.007 mm 0.073-0.079 in
Piston Pin (VIN K)
  Diameter 21.9950-22.0000 mm 0.8659-0.8661 in
  Clearance in Piston 0.0020-0.0130 mm 0.00008-0.00051 in
  Fit-In-Rod (Clearance) 0.0066-0.0217 mm 0.0003-0.0009 in
Piston Pin (VIN 1)
  Diameter 22.995-23.0000 mm 0.90531-0.90551 in
  Clearance in Piston 0.0065-0.0155 mm 0.00061-0.00026 in
  Fit-In-Rod (Clearance) 0.0073-0.0225 mm 0.00029-0.00089 in
Crankshaft
  Main Journal Diameter-All 63.470-63.495 mm 2.4988-2.4998 in
  Rod Journal Diameter-All 57.1170-57.1475 mm 2.2487-2.2499 in
  Main Journal Taper-Maximum 0.00889 mm 0.00035 in
  Rod Journal Taper-Maximum 0.00889 mm 0.00035 in
  Main Journal Out-of-Round-Maximum 0.00635 mm 0.00025 in
  Rod Journal Out-of-Round-Maximum 0.00508 mm 0.00020 in
  Main Bearing to Journal Clearance 1 0.0178-0.0406 mm 0.0007-0.0016 in
  Main Bearing to Journal Clearance 2, 3 and 4 0.0229-0.0457 mm 0.0009-0.0018 in
  Rod Bearing Clearance 0.0127-0.0660 mm 0.0005-0.0026 in
  Crankshaft End Play 0.076-0.276 mm 0.003-0.011 in
Connecting Rod
  Rod Side Clearance 0.102-0.508 mm 0.004-0.0200 in
  Connecting Rod Large End Bore ID 60.295-60.312 mm 2.37378-2.3745 in
Camshaft
  Journal Diameter 47.655-46.858 mm 1.8462-1.8448 in
  Bearing Inside Diameter 1 and 4 46.970-46.934 mm 1.8428-1.8492 in
  Bearing Inside Diameter 2 and 3 46.977-46.942 mm 1.8481-1.8495 in
  Bearing-to-Journal Clearance 0.041-0.119 mm 0.0016-0.0047 in
  Intake Maximum Lobe Lift 6.56 mm 0.258 in
  Exhaust Maximum Lobe Lift 6.56 mm 0.258 in
Balance Shaft
  End Play 0.0-0.171 mm 0.0-0.0067 in
  Rear Journal Diameter 38.085-38.105 mm 1.4994-1.5002 in
  Radial Play-Front, Bearing Clearance 0.0-0.026 mm 0.0-0.0010 in
  Rear Bearing to Journal Clearance 0.012-0.109 mm 0.0005-0.0043 in
  Drive Gear Lash 0.050-0.125 mm 0.002-0.0049 in
  Bearing Bore Diameter-Front 51.973-51.999 mm 2.0462-2.0472 in
  Bearing Bore Diameter-Rear, In Block 47.584-47.612 mm 1.8735-1.8745 in
  Bearing Inside Diameter-Rear 38.118-38.194 mm 1.5007-1.5037 in
Valve System
  Lifter Hydraulic Roller
  Rocker Arm Ratio 1.66:1
  Face Angle 46 degrees
  Seat Angle 45 degrees
  Minimum Margin 0.635 mm 0.025 in
  Seat Runout-Maximum 0.050 mm 0.002 in
  Seat Width-Intake 1.53-2.03 mm 0.060-0.080 in
  Seat Width-Exhaust 2.29-2.79 mm 0.090-0.110 in
  Stem Height-All 49.15-50.17 mm 1.93-1.975 in
  Stem Clearance-Intake 0.031-0.071 mm 0.0012-0.0028 in
  Stem Clearance-Exhaust 0.036-0.074 mm 0.0014-0.0029 in
Valve Spring
  Free Length 49.78 mm 1.960 in
  Load-Closed 334 N @ 43.69 mm 75 lb @ 1.72 in
  Load-Open 1014 N @ 32.4 mm 228 lb @ 1.277 in
  Installed Height 42.93-44.45 mm 1.690-1.750 in
  Approximate Number of Active Coils 4.48
  Approximate Number of Total Coils 6.60
Flywheel
  Runout-Maximum 0.38 mm 0.015 in
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