New 14-liter V16 LS-based Marine Engine Unveiled
By Mike Magda
A new LS-based V16 engine capable of 1,200 to 1,400 horsepower without boost was introduced today at the Miami Boat Show. The foundation for this 14-liter marine powerplant is a patent-pending M16 cylinder block that supports four production-style LS3 or LS7 cylinder heads along with separate conventional intake manifolds.
Unlike many other V12 or V16 engine projects that weld two cylinder blocks and two sets of cylinder heads together, engineers from Sixteen Power designed a bespoke single-piece cast cylinder block constructed from A356-T6 aluminum–which has more desirable material properties than 319 alloy often used in OEM engines. The block is spread between the front eight and back eight cylinders so that two sets of 6-bolt LS cylinder heads can be installed without modification.More at linkSixteen Power has set a tentative redline of 7,000 rpm for the naturally aspirated model with a goal of 1,200 horsepower, although a 1,400-horsepower model is in the works–probably with LS7 heads. A supercharged model could make 1,600 horsepower, and upwards of 2,000 horsepower is possible with a quad-turbo configuration. If there’s enough interest, the company will explore a 900-horsepower model that is built for extended reliability.