Engine Rebuilding Specifications

Valve Stem to Guide Clearance
Intake 0.0008-0.0027 in
Exhaust 0.0018-0.0037 in
Valve Seat Angle 45°
Valve Seat Width
Intake 0.071-0.087 in
Exhaust 0.071-0.087 in
Valve Seat Run-Out 0.002 in
Valve Spring Free Length 1.66 in
Valve Spring Seated Pressure (lb @ in) 55 @ 1.42
Valve Spring Comp. Pressure (lb @ in) 160 @ 1.03
Valve Spring Out Of Square Limit 0.056 in
Valve Stem Diameter
Intake 0.2746-0.2750 in
Exhaust 0.2736-0.2744 in
Valve Face Angle 45.5°
Camshaft Journal Diameter 1.0604-1.0614 in
Camshaft Bearing Inside Diameter 1.0624-1.0635 in
Camshaft Bearing Clearance 0.0010-0.0030 in
Camshaft Endplay 0.0010-0.0064 in
Lifter Diameter 0.6294-0.6299 in
Lifter To Bore Clearance 0.0007-0.0027 in
Crankshaft Main Bearing Journal Diameter 2.657 in
Connecting Rod Journal Diameter 2.0866 in
Maximum Out of Round (All) 0.0019 in
Main Bearing Clearance 0.0010-0.0018 in
Connecting Rod Bearing Clearance 0.0011-0.0027 in
Crankshaft Endplay 0.0051-0.0119 in
Connecting Rod Pin Bore Diameter 0.8664-0.8668 in
Connecting Rod Side Clearance 0.0006-0.0177 in
Piston Clearance 0.0008-0.0018 in
Piston Pin Diameter 0.8662-0.8663 in
Pin To Piston Clearance 0.0001-0.0007 in
Piston Ring Maximum End Gap
Top Ring 0.010 in
Second Ring 0.009 in
Oil Ring 0.006 in
Piston Ring Side Clearance
Top Ring 0.002-0.004 in
Second Ring 0.001-0.003 in
Oil Ring 0.0006 in
Cylinder Bore Diameter (Std.) 3.551 in
Cylinder Bore Maximum Taper 0.0006 in
Cylinder Bore Maximum Out of Round 0.002 in