Vanguard BIG BLOCK M540000 User Manual

Standard and Reject Sizes
ITEM STANDARD SIZE REJECT SIZE
CRANKCASE/CYLINDER
Camshaft Bearing Bore Diameter 0.787-0.788in (20.0-20.015mm) 0.799in (20.30 mm) or more
Cylinder Bore Circularity (Out-Of-Round) 0.0003 in (0.007 mm) - Measured in 5 spots at the top, middle and bottom of the cylinder bore
Cylinder Bore Diameter - M61 and M54 3.366-3.367in (85.5-85.525mm) 3.370in (85.598 mm) or more
CYLINDER HEAD
Intake
Valve Seat Angle - 3-Angle Seat 31°,46°, 60°
Valve Stem Diameter 0.234-0.235in (5.945-5.960mm) 0.228in (5.791 mm) or less
Valve Guide Bore Diameter 0.236-0.237in (6.006-6.026mm) 0.240in (6.106mm) or more
Exhaust
Valve Seat Angle - 3-Angle Seat 31°,46°, 60°
Valve Stem Diameter 0.233-0.234in (5.940-5.955mm) 0.228in (5.791 mm) or less
Valve Guide Bore Diameter 0.236-0.237in (6.006-6.026mm) 0.240in (6.106mm) or more
CRANKCASE COVER
Camshaft Bearing Bore Diameter 0.787-0.788in (20.0-20.025mm) 0.799in (20.30mm) or more
CRANKSHAFT
Crank Pin Journal Diameter 1.693-1.694in (43.0-43.02mm) 1.691in (42.95mm) or less
MAG Bearing Journal Diameter 1.771-1.772 in (44.976-45.0mm) 1.769in (44.926mm) or less
PTO Bearing Journal Diameter 1.771-1.772in (44.976-45.0mm) 1.769in (44.926mm) or less
CAMSHAFT
MAG Bearing Journal Diameter 0.785-0.786in (19.947-19.960mm) 0.783in (19.897mm) or less
PTO Bearing Journal Diameter 0.785-0.786in (19.947-19.960mm) 0.783in (19.897mm) or less
CONNECTING ROD
Crank Pin Bearing Bore Diameter 1.695-1.696in (43.06-43.08mm) 1.698in (43.13mm) or more
Piston Pin Bearing Bore Diameter 0.827-0.828 in (21.014-21.021mm) 0.830 in (21.071mm) or more
PISTON
Piston Pin Diameter 0.826-0.827 in (21.0-21.004mm) 0.826in (20.970mm) or less
Piston Pin Bore Diameter 0.827-0.827in (21.006-21.013mm) 0.829in (21.063mm) or more
Top Compression Ring End Gap 0.008-0.014in (0.20-0.35mm) 0.044in (1.11mm) or more
Middle Oil Wiper Ring End Gap 0.014-0.022in (0.35-0.55mm) 0.052in (1.31 mm) or more
Bottom Oil Control Ring End Gap 0.008-0.028in (0.2-0.70mm) 0.063in (1.59mm) or more
Top Compression Ring Side Clearance 0.004-0.005in (0.09-0.13mm) 0.012in (0.31mm) or more
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Vanguard BIG BLOCK M540000 Specifications

General

Brand	Vanguard
Model	BIG BLOCK M540000
Category	Engine
Language	English