1989 Mercury MerCruiser Engine 5.0 L V8 305 230 HP

FOR SALE 1989 Mercury Marine MerCruiser Engine 5.0 L V8 305 230 HP NO SALT 443 HRS. This engine excellent condition, low HOURS and great runs.

The 1989 Mercury Marine MerCruiser 5.0L (305 CID) V8 engine is a rugged small-block GM motor that produces 230 horsepower. It features a 2-barrel or 4-barrel carburetor and is an ideal, dependable workhorse commonly found in runabouts and cruisers.

General Specifications

• Engine Type : GM Chevrolet Small-Block V8
• Displacement : 5.0 L / 305 CID
• Horsepower : 230 HP (at the crankshaft)
• Maximum RPM (WOT) : 4,400 – 4,800 RPM
• Idle RPM : 650 RPM (in neutral)

Mechanical Data

• Bore : 3.736in (94.9mm)
• Stroke : 3.48in (88.4 mm)
• Compression Ratio : 9.3: 1 or 9.4: 1
• Firing Order : 1-8-4-3-6-5-7-2
• Oil Pressure : 30 – 60 psi at 2000RPM

Electrical & Fuel

• Ignition Timing : 10 BTDC
• Spark Plug Gap : 0.035in
• Fuel Type : Regular unleaded gasoline (minimum 87 octane)
• Alternator : 65 Amps