Engine Rebuilding Specifications

Cylinder Head Warpage Limit 0.008 in
Valve Guides Inside Diameter 0.2362-0.2369 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 0.0390-0.0550 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 0.0010-0.0026 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
Maximum Out of Round (All) 0.0008 in
Maximum 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 Rods Pin Bore Diameter 0.8270-0.8274 in
Connecting Rod Side Clearance 0.0063-0.0123 in
Piston Diameter (Std.) 3.5023-3.5035 in
Piston Clearance 0.0012-0.0020 in
Piston Pin Diameter 0.8267-0.8271 in
Pin To Piston Clearance 0.0004 in
Piston Ring Maximum End Gap
Compression Rings 0.012 in
Oil Rings 0.008 in
Piston Ring Side Clearance
Top Ring 0.0008-0.0024 in
Second Ring 0.0006-0.0022 in
Oil Ring 0.0024-0.0059 in
Cylinder Bore Diameter (Std.) 3.5039-3.5051 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