Engine Mechanical Specifications

Displacement 6.6 Liter (402 cu in)
RPO LLY
Bore 103 mm (4.0551 in)
Stroke 99 mm (3.8976 in)
Compression Ratio 16.8:1
Engine Compression Test - Minimum 2069 KPa (300 psi)
Idle Speed 680 RPM
Block
Cylinder Bore Diameter
Service Limits 103.11 mm (4.0594 in)
Production Value 103.0-103.014 mm (4.0551-4.0557 in)
Cylinder Bore Out-of-Round
Production Value 0.015 mm (0.0006 in)
Cylinder Bore Taper
Production Value 0.015 mm (0.0006 in)
Connecting Rod
Connecting Rod Bearing Clearance
Service Limit 0.10 mm (0.0039 in)
Production Value 0.036-0.077 mm (0.0014-0.0030 in)
Connecting Rod Bore Diameter - Bearing End
Production Value 62.958-62.979 mm 2.4789-2.4795 in
Connecting Rod Bore Diameter - Pin End
Service Limit 34.53 mm (1.3594 in)
Production Value 34.512-34.522 mm (1.3587-1.3591 in)
Connecting Rod Length 163.0 mm (6.42 in)
Connecting Rod Side Clearance
Service Limit 0.54 mm (0.0213 in)
Production Value 0.31-0.49 mm (0.0122-0.0193 in)
Crankshaft
Connecting Rod Journal Diameter
Service Limit 62.88 mm (2.4756 in)
Production Value 62.902-62.922 mm (2.4764-2.4772 in)
Crankshaft End Play
Service Limit 0.54 mm (0.0213 in)
Production Value 0.04-0.205 mm (0.0016-0.0081 in)
Crankshaft Main Bearing Clearance
Service Limit 0.14 mm (0.0055 in)
Production Value 0.039-0.070 mm (0.0015-0.0028 in)
Crankshaft Main Journal Diameter
Service Limit 79.89 mm (3.1453 in)
Production Value 79.905-79.925 mm (3.1459-3.1466 in)
Crankshaft Runout
Service Limit 0.44 mm (0.0173 in)
Production Value 0.05 mm (0.0020 in)
Piston Rings
Piston Ring End Gap-First Compression Ring
Service Limit 1.37 mm (0.0539 in)
Production Value 0.3-0.45 mm (0.0118-0.0177 in)
Piston Ring End Gap-Second Compression Ring
Service Limit 1.35 mm (0.0531 in)
Production Value 0.50-0.65 mm (0.0197-0.0256 in)
Piston Ring End Gap-Oil Control Ring
Service Limit 1.20 mm (0.0472 in)
Production Value 0.15-0.35 mm (0.0059-0.0138 in)
Piston Ring to Groove Clearance-First Compression Ring
Service Limit 0.26 mm (0.0102 in)
Production Value 0.08-0.17 mm (0.0030-0.0067 in)
Piston Ring to Groove Clearance-Second Compression Ring
Service Limit 0.10 mm (0.0039 in)
Production Value 0.01-0.03 mm (0.0004-0.0012 in)
Piston Ring to Groove Clearance-Oil Control Ring
Service Limit 0.12 mm (0.0047 in)
Production Value 0.01-0.03 mm (0.0004-0.0012 in)
Pistons and Pins
Piston-Piston Diameter 102.948-102.960 mm (4.0531-4.0535 in)
Piston-Piston Pin Bore Diameter 34.504-34.512 mm (1.3584-1.3587 in)
Pin-Piston Pin Clearance to Piston Pin Bore
Service Limit 0.017 mm (0.0007 in)
Production Value 0.004-0.017 mm (0.0002-0.0007 in)
Pin-Piston Pin Diameter
Service Limit 34.45 mm (1.3563 in)
Production Value 34.495-34.5 mm (1.3581-1.3583 in)