Engine Rebuilding Specifications

Cylinder Head Warpage Limit 0.007 in
Valve Guide Inside Diameter 0.3140-0.3150 in
Valve Stem to Guide Clearance
Intake 0.0010-0.0028 in
Exhaust 0.0015-0.0033 in
Valve Seat Angle 45°
Valve Seat Width
Intake 0.0600-0.0800 in
Exhaust 0.0800-0.1000 in
Valve Seat Maximum Run-Out 0.001 in
Valve Spring Free Length 1.84 in
Valve Spring Installed Height 1.58 in
Valve Spring Seated Pressure (lb @ in) 65 @ 1.58
Valve Spring Comp. Pressure (lb @ in) 180 @ 1.16
Valve Stem Diameter
Intake 0.3126-0.3134 in
Exhaust 0.3121-0.3129 in
Valve Face Angle 44.0°
Valve Clearance (At TDC with lifter collapsed)
Intake 0.085-0.185 in
Exhaust 0.085-0.185 in
Camshaft Journal Diameter 2.0074-2.0084 in
Camshaft Bearing Inside Diameter 2.0094-2.0104 in
Camshaft Bearing Clearance 0.0010-0.0030 in
Camshaft Endplay 0.0010-0.0050 in
Lifter Bore Diameter 0.8752-0.8767 in
Lifter Diameter 0.874 in
Lifter To Bore Clearance 0.0007-0.0027 in
Crankshaft Main Bearing Journal Diameter 2.5190-2.5198 in
Connecting Rod Journal Diameter 2.1253-2.1261 in
Maximum Out of Round (All) 0.0003 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 0.0060-0.0140 in
Piston Clearance 0.0014-0.0022 in
Piston Pin Diameter 0.9119-0.9124 in
Pin To Piston Clearance 0.0002-0.0005 in
Piston End Ring Maximum Gap
Compression Rings 0.01 in
Oil Ring 0.01 in
Piston Ring Side Clearance
Top Ring 0.0015-0.0029 in
Oil 0.0015-0.0033 in
Cylinder Bore Diameter (Std.) 3.504 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) 9.1-10.1 @ 1.11