Mechanical Specifications

GENERAL SPECIFICATIONS

Block
Camshaft Bearing Bore Diameter - Front and Rear 51.03-51.08 mm (2.009-2.011 inch)
Camshaft Bearing Bore Diameter - Middle #2, #3 50.77-50.82 mm (1.999-2.001 inch)
Crankshaft Main Bearing Bore Diameter 72.1535-72.0695 mm (2.840-2.841 inch)
Crankshaft Main Bearing Bore Out-of-Round 0.008 mm (0.00031 inch)
Cylinder Bore Diameter - Production 92.020-92.038 mm (3.622-3.623 inch)
Cylinder Bore Diameter - Service 92.020-92.038 mm (3.622-3.623 inch)
Cylinder Bore Out-of-Round - Diametral - Production 0.020 mm (0.0008 inch)
Cylinder Bore Out-of-Round - Diametral - Service 0.025 mm (0.001 inch)
Cylinder Bore Taper - Production 0.020 mm (0.0008 inch)
Cylinder Bore Taper - Service 0.025 mm (0.001 inch)
Cylinder Head Deck Height 224 mm (8.818 inch)
Cylinder Head Deck Surface Flatness 0.05 mm (per 152 mm (0.0019 inch) per 6 inch)
Valve Lifter Bore Diameter 21.417-21.455 mm (0.843-0.844 inch)

Camshaft
Camshaft Bearing Inside Diameter 47.523-47.549 mm (1.871-1.872 inch)
Camshaft Journal Diameter 47.45-47.48 mm (1.868-1.869 inch)
Camshaft Journal Out-of-Round 0.025 mm (0.001 inch)
Camshaft Lobe Lift - Exhaust 6.9263 mm (0.2727 inch)
Camshaft Lobe Lift - Intake 6.9263 mm (0.2727 inch)

Connecting Rod
Connecting Rod Bearing Clearance 0.18-0.062 mm (0.0007-0.017 inch)
Connecting Rod Bore Diameter 53.962-53.978 mm (2.124-2.125 inch)
Connecting Rod Bore Out-of-Round 0.008 mm (0.0002 inch)
Connecting Rod Length - Center to Center 144.75-144.81 mm (5.69-5.70 inch)
Connecting Rod Side Clearance 0.25-0.37 mm (0.010-0.015 inch)

Crankshaft
Connecting Rod Journal Diameter 50.768-50.784 mm (1.9987-1.9994 inch)
Connecting Rod Journal Out-of-Round 0.005 mm (0.0002 inch)
Connecting Rod Journal Taper 0.005 mm (0.0002 inch)
Connecting Rod Journal Width 21.92-22.08 mm (0.863-0.869 inch)
Crankshaft End Play 0.060-0.210 mm (0.0024-0.0083 inch)
Crankshaft Main Bearing Journal Width 23.9-24.1 mm (0.941-0.949 inch)
Crankshaft Main Bearing Clearance - Except #3 0.019-0.064 mm (0.0008-0.0025 inch)
Crankshaft Main Bearing Clearance - #3 Thrust Bearing 0.032-0.077 mm (0.0012-0.0030 inch)
Crankshaft Main Journal Diameter 67.239-67.257 mm (2.6473-2.6483 inch)
Crankshaft Main Journal Out-of-Round 0.005 mm (0.0002 inch)
Crankshaft Main Journal Taper 0.005 mm (0.0002 inch)
Crankshaft Rear Flange Runout 0.04 mm (0.0016 inch)

Piston Ring End Gap
First Compression Ring 0.15-0.36 mm (0.006-0.014 inch)
Second Compression Ring 0.48-0.74 mm (0.0188-0.0291 inch)
Oil Control Ring 0.25-0.77 mm (0.0098-0.0303 inch)

Piston Ring to Groove Clearance
First Compression Ring 0.04-0.086 mm (0.002-0.0033 inch)
Second Compression Ring 0.04-0.08 mm (0.002-0.0031 inch)
Oil Control Ring 0.07-0.095 mm (0.0028-0.0037 inch)

Piston Ring Thickness
First Compression Ring 1.164-1.190 mm (0.046-0.047 inch)
Second Compression Ring 1.460-1.490 mm (0.0574-0.0586 inch)
Oil Control Ring - Maximum 2.960 mm (0.116 inch)

Piston
Piston Diameter - production - cylinder 1-4 91.985-92.003 mm (3.621-3.622 inch)
Piston Diameter - service limit - cylinder 1-4 91.945 mm (3.619 inch)
Piston Diameter - production - cylinder 5-6 91.99-92.028 mm (3.621-3.623 inch)
Piston Diameter - service limit - cylinder 5-6 91.945 mm (3.619 inch)
Piston Pin Bore Diameter 23.005-23.010 mm (0.9057-0.9059 inch)
Piston Ring Groove Width - First 1.23-1.25 mm (0.048-0.049 inch)
Piston Ring Groove Width - Second 1.53-1.55 mm (0.060-0.061 inch)
Piston Ring Groove Width - Oil Control 3.03-3.055 mm (0.119-0.120 inch)
Piston to Bore Clearance - production - 1-4 0.17-0.053 mm (0.0006-0.0020 inch)
Piston to Bore Clearance - service limit- 1-4 0.093 mm (0.0036 inch)
Piston to Bore Clearance - production - 5-6 0.008-0.048 mm (-0.0003-0.0018 inch)
Piston to Bore Clearance - service limit- 5-6 0.093 mm (0.0036 inch)

Pin
Piston Pin Clearance to Connecting Rod Bore - Press Fit 0.047 to -0.019 mm (-0.0019 to -0.0007 inch)
Piston Pin Clearance to Piston Pin Bore 0.008-0.016 mm (0.00031-0.00063 inch)
Piston Pin Diameter 22.994-22.997 mm (0.9053-0.9054 inch)