Re: staight six
They were used in the Chevy Nova for years, they're great! The only thing different for marine was a 2bbl carb, as opposed to the Nova with a 1bbl. raising the hp from 150 to 165. I had one in a 18' Wellcraft Airslot, and rebuilt it, it was frozen due to owner neglect, then it was a fast boat after that 45mph easy!