This Italian manufacturer is once again making a push into the American market with two series of pleasureboat engines for this year, the 1300 and the 1700, both emphasizing low weight per horsepower. The 1300 comes as an in-line six, V-8, and V-12 with maximum ratings of 600, 750, and 1,200 hp, respectively. Listed dry weights are 2,072, 2,161, and 3,196 pounds. All engines have two valves per cylinder, and the V-12 has a remarkable weight-to-horsepower ratio of 2.66 lbs/hp. The 1700 series consists of a 30.8-liter, 1,299-hp V-8; a 46.3-liter, 2,285-hp V-12; and a 61.7-liter, 3,196-hp V-16, all with four valves per cylinder. The V-16 carries a horsepower-to-weight ratio of 5.03 lbs/hp.

Isotta Fraschini (757) 548-6000. Fax: (757) 548-6012.

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