Are you looking to add horsepower to your boat ? Aluminum cylinder heads are a sure fire way to achieve just that. Cobra Power is an authorized Dart Machinery dealer, we stock the following Dart Pro 1 heads: 310, 325, 345 & the new 380 for those larger dispacement motors. We also have the Iron Eagle line-up ready to ship. Call us at Cobra Power for more details. 305-893-5018