Cylinder Block

CYLINDER BORE:
Diameter 101.60 - 101.65 mm (4.000 - 4.002 inch)
Out-of-Round (Max.) 0.127 mm (0.005 inch)
Taper (Max.) 0.254 mm (0.010 inch)
Oversize (Max.) 1.016 mm (0.040 inch)

DISTRIBUTOR LOWER DRIVE SHAFT:
Bushing (Pressed in Block) 0.0127 - 0.3556 mm (0.0005 - 0.0140 inch)
Shaft-to-Bushing Clearance 0.0178 - 0.0686 mm (0.0007 - 0.0027 inch)

Tappet Bore Diameter 22.99 - 23.01 mm (0.9051 - 0.9059 inch)