Mercury 305 CID - Engine Specifications

ENGINES - 3A-590-823225--1 1096
Engine Specifications
UNIT OF MEASUREMENT
In. (mm)
Engine
Model
MCM 5.0L / 305 CID Alpha and Bravo
Displacement 305 CID (5.0 L)
Bore 3.74 (95)
Stroke 3.48 (88.4)
Compression
Ratio
9.1:1
Heads Cast Iron
Intake
Manifold
Cast Iron
Block Cast Iron (2 Bolt Main Bearing Caps)
Rods Forged Steel
Crankshaft Cast Iron
Pistons Cast Aluminum
Camshaft Cast Iron
Fuel Pump
Push Rod
Steel
Engine
Model
MCM / MIE 5.7L / 350 CID Alpha and Bravo
Displacement 350 CID (5.7 Litre)
Bore 4.00 (101.6)
Stroke 3.48 (88.4)
Compression
Ratio
9.3:1
Heads Cast Iron
Intake
Manifold
Cast Iron (High Rise on Magnum and 4 Barrel EFI Models)
Block Cast Iron (2 Bolt Main Bearing Caps)
Rods Forged Steel
Crankshaft Cast Iron
Pistons Cast Aluminum
Camshaft Steel (See Note 1)
Fuel Pump
Push Rod
Cast Iron (See Note 1)