Cylinder Block Assembly: Specifications

Cylinder Bore	Diameter	3.8 in.
	Out-of-round maximum	0.001 in.
	Taper	0.001 in.
Piston	Used piston clearance (41mm from top of piston)	0.0020-0.0036 in.
	New piston clearance (41 mm from top of piston)	0.004-0.0020 in.
Piston ring groove depth	Top compression	0.158-0.163 in.
	2nd compression	0.0166-0.171 in.
	Oil control	0.150-0.155 in.
Piston ring end gap	Top compression	0.010-0.018 in.
	2nd compression	0.023-0.33 in.
	Oil control	0.010-0.30 in.
Piston ring side clearance	Top compression	0.0013-0.0031 in.
	2nd compression	0.0013-0.0031 in.
	Oil control	0.0009-0.0079 in.
Piston ring width	Top compression	0.0463-0.0471 in.
	2nd compression	0.0581-0.0589 in.
	Oil control	0.073-0.079 in.
Piston pin	Diameter	0.8659-0.8661 in.
	Clearance in piston	0.00008-0.00051 in.
	Fit-in-rod (clearance)	0.0003-0.0009 in.
Crankshaft	Main Journal Diameter-All	2.4988-2.4998 inch
	Rod Journal Diameter-All	2.2487-2.2499 in.
	Main Journal Taper-Maximum	0.00035 in.
	Rod Journal Taper-Maximum	0.00035 in.
	Main Journal Out-of-Round-Maximum	0.00025 in.
	Rod Journal Out-of-Round-Maximum	0.00020 in.
	Main Bearing to Journal Clearance 1	0.0007-0.0016 inch
	Main Bearing to Journal Clearance 2, 3 and 4	0.0009-0.0018 in.
	Rod Bearing Clearance	0.0005-0.0026 inch
	Crankshaft End Play	0.003-0.011 inch
Connecting Rod	Rod Side Clearance	0.004-0.200 in.
	Connecting Rod Large End Bore ID	2.37378-2.3745 in.
General Data	Displacement	231 CID
	Bore	3.8 in.
	Stroke	3.4 in.
	Compression ratio	9.4:1
Crankshaft balancer bolt		111 ft.lbs + 114 degrees
Crankshaft main bearing cap bolt Tighten the crankshaft main bearing cap bolts in equal increments. Do not completely tighten one bolt at a time to prevent the cap from being cocked.	First pass	30 ft.lbs.
	Final pass	110 degrees
Crankshaft main bearing cap bolt (Side)	First pass	11 ft.lbs.
	Final pass	45 degrees