Engine Rebuilding Specifications

Cylinder Head Warpage Limit 0.007 in
Valve Guide Inside Diameter 0.3433-0.3443 in
Stem to Guide Clearance
Intake 0.0010-0.0028 in
Exhaust 0.0015-0.0033 in
Valve Seat Angle 44.5°
Valve Seat Width
Intake 0.0600-0.0800 in
Exhaust 0.0600-0.0800 in
Valve Seat Run-Out 0.003 in
Valve Seat Insert Bore Diameter
Intake 1.8532-1.8542 in
Exhaust 1.5645 in
Valve Spring Free Length 2.02 in
Valve Spring Installed Height 1.65 in
Valve Spring Seated Pressure (lb @ in) 85 @ 1.65
Valve Spring Comp. Pressure (lb @ in) 220 @ 1.18
Valve Stem Diameter
Intake 0.3415-0.3423 in
Exhaust 0.3410-0.3418 in
Valve Face Angle 45.8°
Valve Clearance (At TDC with lifter collapsed)
Intake 0.089-0.189 in
Exhaust 0.089-0.189 in
Camshaft Journal Diameter 2.0505-2.0515 in
Camshaft Bearing Inside Diameter 2.0525-2.0535 in
Camshaft Bearing Clearance 0.0010-0.0030 in
Camshaft Endplay 0
Lifter Bore Diameter 0.8767-0.8752 in
Lifter Diameter 0.8740-0.8745 in
Lifter To Bore Clearance 0.0007-0.0027 in
Crankshaft Main Bearing Journal Diameter 2.519-2.5198 in
Connecting Rod Journal Diameter 2.3103-2.3111 in
Maximum Out of Round (All) 0.0006 in
Maximum Taper (All) 0.0003 in
Main Bearing Clearance 0.0010-0.0014 in
Connecting Rod Bearing Clearance 0.0010-0.0014 in
Crankshaft Endplay 0.0040-0.0080 in
Connecting Rod Pin Bore Diameter 0.9096-0.9112 in
Connecting Rod Side Clearance 0.0047-0.0114 in
Piston Clearance 0.0014-0.0032 in
Piston Pin Diameter 0.9119-0.9124 in
Piston Ring End Gap
Top Ring 0.011 in
Second Ring 0.009 in
Oil Ring 0.015 in
Compression Ring Side Clearance 0.0016-0.0034 in
Cylinder Bore Diameter (Std.) 3.81 in
Cylinder Bore Maximum Taper 0.002 in
Cylinder Bore Maximum Out of Round 0.002 in
Oil Pump Rotor Backlash 0.0080-0.0012 in
Oil Pump Rotor To Body Clearance 0.0020-0.0055 in
Oil Pump Rotor Endplay 0.0005-0.0055 in
Oil Pump Relief Valve To Body Clearance 0.0017-0.0029 in
Oil Pump Relief Spring Pressure (lb @ in) 15.2-17.1 @ 1.20