Engine Rebuilding Specifications

Cylinder Head Warpage Limit 0.006 in
Valve Guide Inside Diameter 0.2366-0.2374 in
Stem to Guide Clearance
Intake 0.0010-0.0024 in
Exhaust 0.0012-0.0026 in
Valve Seat Angle 45°
Seat Width 0.0315-0.0551 in
Valve Spring Free Length 1.858 in
Seated Pressure Pounds @ Inches 44 @ 1.54
Valve Spring Out Of Square Limit 0.063 in
Valve Stem Diameter
Intake 0.2350-0.2356 in
Exhaust 0.2348-0.2354 in
Valve Face Angle 45°
Minimum Margin 0.02 in
Camshaft Journal Diameter 1.0213-1.0222 in
Camshaft Bearing Clearance 0.0014-0.0032 in
Camshaft Endplay 0.0028-0.0075 in
Lifter To Bore Clearance 0.0010-0.0026 in
Crankshaft Main Bearing Journal Diameter 1.9661-1.9668 in
Connecting Rod Journal Diameter 1.7693-1.7699 in
Maximum Out of Round 0.002 in
Maximum Taper 0.002 in
Main Bearings Clearance 0.0010-0.0017 in
Connecting Rod Bearing Clearance 0.0011-0.0027 in
Crankshaft Endplay 0.0031-0.0110 in
Connecting Rods Pin Bore Diameter 0.7855-0.7880 in
Connecting Rod Side Clearance 0.0043-0.0103 in
Piston Diameter (Std.) 3.0690-3.0698 in
Piston Clearance 0.0010-0.0026 in
Piston Pin Diameter 0.7869-0.7871 in
Pin To Piston Clearance 0.0004-0.0012 in
Piston End Ring Gap
Top Ring 0.008 in
Second Ring 0.006 in
Oil Ring 0.008 in
Piston Ring Side Clearance (all rings) 0.0012-0.0026 in
Oil Pump Rotor Maximum Backlash 0.0008-0.0063 in
Oil Pump Rotor To Body Clearance 0.0035-0.0071 in
Oil Pump Rotor Endplay 0.0012-0.0043 in