Engine Rebuilding Specifications

Cylinder Head Warpage Limit 0.008 in
Valve Guide Inside Diameter 0.2362-0.2369 in
Stem to Guide Clearance
Intake 0.0010-0.0023 in
Exhaust 0.0012-0.0025 in
Valve Seat Angle 45°
Valve Seat Width
Intake 0.0390-0.0550 in
Exhaust 0.0390-0.0550 in
Valve Spring Free Length 1.76 in
Valve Spring Seated Pressure (lb @ in) 42 @ 1.52
Valve Spring Comp. Pressure (lb @ in) 121 @ 1.19
Valve Stem Diameter
Intake 0.2346-0.2352 in
Exhaust 0.2344-0.2350 in
Valve Face Angle 45.5°
Maximum Valve Margin
Intake 0.02 in
Exhaust 0.02 in
Valve Clearance
Intake 0.006-0.010 in
Exhaust 0.010-0.014 in
Camshaft Journal Diameter 1.2189-1.2195 in
Camshaft Bearing Inside Diameter 1.2205-1.2215 in
Camshaft Bearing Clearance 0.0010-.0026 in
Camshaft Endplay 0.012 in
Lifter Diameter 1.2587-1.2596 in
Lifter To Bore Clearance 0.0009-0.0014 in
Crankshaft Main Bearing Journal Diameter 2.5187-2.5197 in
Connecting Rod Journal Diameter 2.0463-2.0472 in
Max. Out of Round (All) 0.0008 in
Max. Taper (All) 0.0008 in
Main Bearing Clearance 0.0011-0.0022 in
Connecting Rod Bearing Clearance 0.0090-0.0022 in
Crankshaft Endplay 0.0008-0.0087 in
Connecting Rod Pin Bore Diameter 0.8663-0.8668 in
Connecting Rod Side Clearance 0.0063-0.0123 in
Piston Diameter (Std.) 3.6205-3.6217 in
Piston Clearance 0.0012-0.0020 in
Piston Pin Diameter 0.8660-0.8665 in
Pin To Piston Clearance 0.0004 in
Piston End Ring Maximum Gap
Top Ring 0.012 in
Second Ring 0.018 in
Oil Ring 0.008 in
Piston Ring Side Clearance
Top Ring 0.0016-0.0031 in
Second Ring 0.0008-0.0024 in
Oil Ring 0.0024-0.0059 in
Cylinder Bore Diameter (Std.) 3.6220-3.6232 in
Cylinder Bore Maximum Taper 0.0008 in
Cylinder Bore Maximum Out of Round 0.0008 in
Oil Pump Rotor Backlash 0.0024-0.0071 in
Oil Pump Rotor To Body Clearance 0.0012-0.0035 in
Oil Pump Rotor Endplay 0.0039-0.0069 in
Oil Pump Driveshaft To Pump Body Clearance 0.0012-0.0035 in
Oil Pump Relief Valve To Body Clearance 0.0020-0.0035 in