Overview

Expect nothing less than perfect power day-after-day from solid hole shots through top end.

Standard equipment for the 2008 Assault 325 is Indmar's ETC system - Electronic Throttle Control with Cruise. The Indmar developed system allows the helm throttle control to electronically connect to the engine's ECM. Throttle response is quick and smooth. The Electronic Throttle Control with Cruise feature is a bonus to recreational water-ski and wakeboard families.

Based on the GM Vortec 5700 (5.7L/350 CID) block, its field-proven multi-port electronic fuel injection (MPFI) system is matched to Indmar's custom designed two-plane intake manifold for reliable, torque-heavy performance. More features include free-breathing Vortec heads and roller cam. It's brain is Delphi's most advanced water resistant ECM (Electronic Control Module) the MEFI-5 hardware/software system. The MEFI-5 system is custom calibrated by Indmar to provide maximum performance and drive ability. By custom calibrating the ECM to match hull design requirements and the intended boat application this process allows boat and motor to perform as one seamless unit. The three-dimensional system precisely manages fuel, ignition and air. It is programmed to deliver the power skiers' and wake boarders' need, plus the classic turnkey starts, unhesitating dependability and fuel efficiency that only Indmar can deliver.

Indmar's Vortec 5.7L MPFI is offered by Skier's Choice (Supra and Moomba) 2007 boat line as the Assault 325. It is protected by Indmar's 3-year limited warranty that covers fuel and electrical systems.

Certified: 3-Stars Ultra-Low Emission by California Air Resources Board 2007.

Note: All Skier's Choice Models are available as Salt Water Specific engines.

Experienced saltwater boaters will be the first to appreciate the extensive list of saltwater-specific details found in the Skier's Choice SS series. All marinized parts are E-coated, an advanced electro-coat dip process that provides optimum protection against corrosion. Unlike paints or powder coating, E-coating completely covers both external and internal surfaces, creating a permanent-paint-to-metal bond. Will not peel. Will not crack. Corrosion will not put a dent in it.

SS Cooling systems are totally closed and corrosion free. Saltwater never enters an SS engine system. It uses only propylene-glycol/water coolant driven by a high-flow pump. Coolant tanks are easily accessible for filling and maintenance and are equipped with sacrificial anodes for extended life.

Each Skier's Choice SS engine is protected by the same three-year limited warranty that backs every OEM installed Skier's Choice engine.

General Specs

Displacement: 5.7L / 350 CID
Cylinders: V-8
Bore & Stroke: 4.00 x 3.48
Compression Ratio: 9.4:1 (High-flow Vortec heads)
Exhaust: 2 Piece Designed Manifold.
Fuel System: Multi-port electric fuel injection (MPFI)
ECM: Delphi MEFI-5 hardware/software system that is custom calibrated by Indmar.
Ignition: HVS High Voltage Switch Ignition System
Fuel Required: Unleaded, 89-octane minimum.
Oil Type: Pennzoil Marine (SAE 15W-40), service SJ/CG4
Oil Capacity: 5.5 quarts with filter
Oil Filter: Pennzoil PZ3
Spark Pugs: 41-993 (Platinum Tip)
Max. RPM: 5,000
Warranty: Factory-Backed 3 year limited warranty including fuel and electrical. High Output 70-Amp Alternator: Produces 25 amps at idle.
Heavy-Duty Sealed Wiring Harness:
Exclusive Multi-step Paint Process: To insure maximum protection from rust and corrosion.
Beltless, Crankshaft Driven Seawater Pump: Works better and it lasts longer.
Marine-Specific Circulating Water Pump Impeller:
Serpentine Alternator and Circulation Water pump Belt:
Advanced Valve Train: Camshaft with marine-specific performance profile increases low-end torque for hole-shots, while lengthening the flat torque curve for excellent top-end power. Hydraulic roller lifters allow use of fast-action cam lobes to boost power while retaining a quiet idle and reducing friction and wear.