Ilmor
Ilmor Engine 520 MPI-S Bobtail
Ilmor Engine 520 MPI-S Bobtail
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Ilmor 520 MPI-S high performance Engine/Bobtail Is one of your best options when it comes to power and performance. Ilmor 520 MPI-S Inboard Engine is also you best Repower option when looking to replace or upgrade an older engine. This bobtail comes complete ready to drop in. Ilmor engines offers this as a repower for almost every boat manufacturer out there today. For Repowers, you would need additional items to communicate with your boat manufactures system.
We are Ilmor Engines #1 seller and work directly with their custom build team.
Compatible With:
- Engine is built to spec for your application
- Boat year, make, and model will be needed
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Call today for your performance upgrade
FREE FRIEGHT! Within the US. Call to place your order.
Call for Additional discounts, and before placing an order. No orders on engines will be processed through the website. Factory 3 year warranty 480 hours.
Model 520 MPI-S (Multi-Port Injection -Sterndrive)
Displacement 7400 cc (454 ci)
Orientation Longitudinal
Configuration V8
Compression Ratio 10.0:1
Valve Configuration Overhead valve (OHV)
Valves Per Cylinder 2
Marine Assembly Site Mooresville, NC. USA
Valve Lifters Hydraulic roller
Firing Order 1 - 8 - 7 - 2 - 6 - 5 - 4 - 3
Bore x Stroke 106.3 x 104.8 mm
Fuel Type Unleaded 87-93 (R+M)/2
octane, 10% ethanol max
Max. Engine Speed 5600 rpm
Block LSX Cast Iron
Cylinder Head Cast aluminum
Intake Manifold Cast aluminum
Exhaust Manifold Cast aluminum & Stainless steel
riser
Main Bearing Caps Billet Steel Main Caps
Crankshaft Billet Steel
Camshaft Billet Roller
Connecting Rods 4340 Forged steel
Modifications 2618 pistons, inconel exhaust
valves, increased oil drain back,
SCAT crankshaft
PERFORMANCE
Horsepower 520 hp (382 kW) @ 5600 rpm
Torque 516 lb.-ft (700 Nm) @ 4400 rpm
Weight 1025 lbs / 445 kg
There is no return on engines. All sales are final. All Ilmor engines come with a factory warranty.
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