OMC Engines 185-220-225 230/305 GM

Number of cylinders: 8 cylinders

Displacement: 5 L

Standard diameters

Pistons: 95 / Connecting rods: 53.34 / Mains: 62.19

Tightening torque (m·kg)

Cylinder head: 8.8 / Flywheel: 8.2 / Rod: 6.2 / Main: 9.5

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Engines OMC 120/153 GM

Number of cylinders: 4 cylinders

Displacement: 2.5L

Standard diameters

Pistons: 98.42 / Connecting rods: 50.8 / Bearings: 58.38

Tightening torque m. Kg

Cylinder head: 12.5 to 13.8 / Flywheel: 8.2 to 8.8 / Connecting rod: 4 to 4.5 / Bearing: 8.2 to 9.5

OMC Engines 155/225 GM

Number of cylinders: 6 cylinders

Displacement: 3.6 L

Standard diameters

Pistons: 95.25 / Connecting rods: 53.34 / Mains: 58.38

Tightening torque (m·kg)

Cylinder head: 9 to 11 / Flywheel: 6.32 to 6.9 / Rod: 4.2 to 5.5 / Main: 13.2 to 16.5

OMC Engines 140/181 GM

Number of cylinders: 4 cylinders

Displacement: 3 L

Standard diameters

Pistons: 101.6 / Connecting rods: 53.34 / Main bearings: 62.19

Tightening torque (m·kg)

Cylinder head: 12.5 to 13.8 / Flywheel: 8.2 to 8.8 / Connecting rod: 4 to 4.5 / Main bearing: 8.2 to 9.5

OMC Engines 210-215-225 230-235-245/307 GM

Number of cylinders: 8 cylinders

Displacement: 4 L

Standard diameters

Pistons: 98.42 / Connecting rods: 53.34 / Main bearings: 62.19

Tightening torque m·kg

Cylinder head: 8.8 / Flywheel: 8.2 / Connecting rod: 6.2 / Main bearing: 9.5