Engine Rebuilding Specifications

Cylinder Head Warpage Limit 0.006 in
Valve Guide Inside Diameter 0.3433-0.3443 in
Valve Stem to Guide Clearance
Intake 0.0010-0.0027 in
Exhaust 0.0015-0.0032 in
Valve Seat Angle 45°
Valve Seat Width
Intake 0.0600-0.0800 in
Exhaust 0.0600-0.0800 in
Valve Seat Run-Out 0.002 in
Valve Spring Free Length
Intake 2.02 in
Exhaust 1.79 in
Valve Spring Installed Height
Intake 1.75-1.81
Exhaust 1.57-1.64
Valve Spring Seated Pressure (lb @ in)
Intake 80 @ 1.78
Exhaust 85 @ 1.60
Valve Spring Comp. Pressure (lb @ in)
Intake 211-230 @ 1.33
Exhaust 200-226 @ 1.15
Valve Spring Out Of Square Limit 0.078
Valve Stem Diameter
Intake 0.3416-0.3423 in
Exhaust 0.3411-0.3418 in
Valve Face Angle 44.0°
Camshaft Journal Diameter
Journal 1 2.0805-2.0815 in
Journal 2 2.0655-2.0665 in
Journal 3 2.0505-2.0515 in
Journal 4 2.0355-2.0365 in
Journal 5 2.0205-2.0215 in
Camshaft Bearing Inside Diameter
Journal 1 2.0825-2.0835 in
Journal 2 2.0675-2.0685 in
Journal 3 2.0525-2.0535 in
Journal 4 2.0375-2.0385 in
Journal 5 2.0225-2.0235 in
Camshaft Bearing Clearance 0.0010-0.0030 in
Camshaft Endplay 0.0005-0.0055 in
Lifter Bore Diameter 0.8752-0.8767 in
Lifter Diameter 0.8740-0.8745 in
Lifter To Bore Clearance 0.0007-0.0027 in
Crankshaft Main Bearing Journal Diameter 2.2482-2.2490 in
Connecting Rod Journal Diameter 2.1228-2.1236 in
Maximum Out of Round (All) 0.0006 in
Maximum Taper (All) 0.0006 in
Main Bearing Clearance 0.0004-0.0015 in
Connecting Rod Bearing Clearance 0.0008-0.0015 in
Crankshaft Endplay 0.0040-0.0080 in
Connecting Rod Pin Bore Diameter 0.9096-0.9112 in
Connecting Rod Side Clearance 0.0100-0.0200 in
Piston Clearance 0.0012-0.0020 in
Piston Pin Diameter 0.9119-0.9124 in
Pin To Piston Clearance 0.0002-0.0004 in
Piston Ring Maximum End Gap
Compression Rings 0.01 in
Oil Ring 0.015 in
Compression Ring Side Clearance 0.0020-0.0040 in
Cylinder Bore Diameter (Std.) 4.0000-4.0048 in
Cylinder Bore Maximum Taper 0.01 in
Cylinder Bore Maximum Out of Round 0.005 in
Oil Pump Rotor To Body Clearance 0.0010-0.0130 in
Oil Pump Rotor Endplay 0.004 in
Oil Pump Driveshaft To Pump Body Clearance 0.0015-0.0030 in
Oil Pump Relief Valve To Body Clearance 0.0015-0.0030 in
Oil Pump Relief Spring Pressure (lb @ in) 10.6-12.2 @ 1.70