General Motors

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7 New Must-See Marine Engines, by Capt. Richard Thiel (continued)

General Motors 4.3-liter V-6 for stern drives

General Motors unveiled a new 4.3-liter V-6 for stern drives that features two state-of-the-art engine technologies: variable valve timing and direct fuel injection. Volvo Penta has reportedly marinized this engine, but presumably Mercury will not as it has developed its own V-6, displacing 4.5 liters but without variable valve timing or direct fuel injection. There’s speculation that while less technologically advanced, Mercury’s V-6 will be less expensive, although no pricing was released. GM also revealed that it will be making additional engine announcements later this year. www.gmpowertrain.com

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