Engine Rebuilding Specifications
Cylinder Head Warpage Limit 0.003 inValve Guide Inside Diameter 0.3174-0.3187 in
Stem to Guide Clearance
Intake 0.0008-0.0027 in
Exhaust 0.0018-0.0037 in
Valve Seat Angle 45°
Valve Seat Width 0.0690-0.0910 in
Valve Seat Run-Out 0.003 in
Valve Spring Free Length 1.9 in
Valve Spring Installed Height 1.44-1.48 in
Valve Spring Seated Pressure (Pounds @ Inches) 95 @ 1.46
Valve Spring Comp. Pressure (Pounds @ Inches) 200 @ 1.09
Valve Spring Out Of Square Limit 0.06 in
Valve Stem Diameter
Intake 0.3159-0.3167 in
Exhaust 0.3149-0.3156 in
Valve Face Angle 45.6°
Valve Clearance (at TDC with lifter collapsed)
Intake 0.000-0.177 in
Exhaust 0.000-0.177 in
Camshaft Journal Diameter 1.8007-1.8017 in
Camshaft Bearing Inside Diameter 1.8030-1.8040 in
Camshaft Bearing Clearance 0.0013-0.0033 in
Camshaft Endplay 0.0018-0.0060 in
Lifter Bore Diameter 0.876 in
Lifter Diameter 0.8740-0.8745 in
Lifter To Bore Clearance 0.0009-0.0026 in
Crankshaft Main Bearing Journal Diameter 2.2827-2.2835 in
Connecting Rod Journal Diameter 1.7279-1.7287 in
Max. Out of Round (All) 0.0003 in
Max. Taper (All) 0.0003 in
Bearing Clearance
Main Bearings 0.0011-0.0019 in
Connecting Rod Bearings 0.0008-0.0015 in
Crankshaft Endplay 0.0040-0.0080 in
Connecting Rod Pin Bore Diameter 0.8106-0.8114 in
Connecting Rod Side Clearance 0.0040-0.0110 in
Piston Diameter (Std.)
Coded Red 3.224-3.225 in
Coded Blue 3.225-3.226 in
Piston Clearance 0.0012-0.0020 in
Piston Pin Diameter 0.8119-0.8124 in
Pin To Piston Clearance 0.0003-0.0005 in
Piston End Ring Minimum Gap
Compression 0.010-0.030 in
Oil 0.016 in
Compression Ring Side Clearance
Top Ring 0.0015-0.0032 in
Second Ring 0.0015-0.0035 in
Cylinder Bore Diameter (Std.) 3.23 in
Cylinder Bore Max. Taper 0.001 in
Cylinder Bore Max. Out of Round 0.005 in
Oil Pump Rotor Backlash 0.0020-0.0070 in
Oil Pump Rotor To Body Clearance 0.0029-0.0063 in
Oil Pump Rotor Endplay [01] 0.0005-0.0035 in
Relief Valve To Body Clearance 0.0008-0.0031 in
Relief Spring Pressure (Lbs. @ Inches) 9.3-10.3 @ 1.11