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I have a 2 1/2 year old SEI 106 Alpha 1 Gen 1 outdrive currently installed on my boat. My normally aspirated three year old GM 350 engine ended its life last week. My question is can I install a 5.7 vortec with a carb at 310 horsepower in place of the old engine that rated around 200 hp. Will the outdrive accept that increase in power?
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Last edited by don; 08-23-2008, 05:33 PM. -
The maximum rating for the Alpha drives is 300HP. SEI does not provide a warranty on any application over 300HP. If you have the 1.47 ratio you might be OK by avoiding fast hole shots and quick acceleration.
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