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4.3L Enhanced Base
NEW 4.3L GM “Enhanced Base” Marine Engine
Indmar Part # 051000
The Indmar 4.3L new “Enhanced Base” engine includes the following (when ordered under the above part number).
Block (with all internal engine components) Harmonic Balancer Water Circulating Pump 14” Flywheel Timing Chain Cover Oil Pan Valve Covers Spark Plugs Plug Wires
Electronic Distributor (HEI-Delco) Fuel Pump (electronic) Coil
Carburetor (Holley/600 cfm) Thermostat Housing T-HSG Hose

Specifications
Displacement: 262 C.I.D. (4294 CC) / 4.3L Cylinders: 90 Degree V6 Cylinder Comp. Ratio: 9.4:1 Valve Config.: Overhead Valves (2 valves per cylinder) Valve Lifters: Hydralic Roller Bore x Stroke: 4.00” x 3.48” (101.60 x 88.39 mm) Main Bearings Caps Cast Iron GM232-M Ignition: Customer Supplied Intake Manifold: Cast Iron (4 Barrel Carburetor) Block MFG.: GM Powertrain Flywheel Dia.: 14” (Ring Gear Towards Engine) Firing Order: 1 –6 - 5 - 4 - 3 - 2 Oil Pan Capacity: 4.5 Quarts (W/O Filter) Oil Type: SAE 15W40 Pennzoil Marine Paint Protectant: High Gloss Black / Superior Corrosion Resistant Horsepower: 223 H.P. @ 4800 RPM (Carburetor) Torque: 267 lb-ft @ 2800 RPM Warranty: 1 Year Limited (90 Days Commercial)
Note: Actual power levels may vary depending on Indmar’s calibration and application.