Engine Rebuilding Specifications

Cylinder Head Warpage Limit 0.006 in
Valve Stem to Guide Clearance
Intake 0.0010-0.0023 in
Exhaust 0.0012-0.0025 in
Valve Seat Angle 45°
Valve Seat Width
Intake 0.0315-0.0551 in
Exhaust 0.0315-0.0551 in
Valve Spring Free Length
Intake 1.729 in
Exhaust 1.847 in
Valve Spring Out Of Square Limit 0.064 in
Valve Stem Diameter
Intake 0.2351-0.2356 in
Exhaust 0.2349-0.2354 in
Valve Face Angle 45.0°
Camshaft Endplay 0.0020-0.0039 in
Lifter To Bore Clearance 0.0010-0.0025 in
Crankshaft Main Bearing Journal Diameter 2.4385-2.4392 in
Max. Out of Round (All) 0.002 in
Max. Taper (All) 0.002 in
Bearing Clearance
Main Bearings 0.0015-0.0022 in
Connecting Rod Bearings 0.0009-0.0017 in
Crankshaft Endplay 0.0032-0.0111 in
Connecting Rod Pin Bore Diameter 0.7864-0.7866 in
Connecting Rod Side Clearance 0.0070-0.0130 in
Piston Diameter (Std.) 3.3250-3.3261 in
Piston Clearance 0.0012-0.0022 in
Piston Pin Diameter 0.7470-0.7472 in
Pin To Piston Clearance 0.0004-0.0010 in
Piston End Ring Maximum Gap
Top Ring 0.006 in
Second Ring 0.010 in
Oil Ring 0.008 in
Compression Ring Side Clearance
Top Ring 0.0008-0.0026 in
Second Ring 0.0012-0.0026 in
Cylinder Bore Diameter (Std.) 3.3268-3.3276 in
Cylinder Bore Taper (Max.) 0.0008 in
Cylinder Bore Out of Round (Max.) 0.0008 in
Oil Pump Rotor Backlash 0.0078 in
Oil Pump Rotor To Body Clearance 0.0087 in
Oil Pump Rotor Endplay 0.0051 in