Home › Forum › Ask A Member › 5.5 -> 6hp conversion › Re: 5.5 -> 6hp conversion
May 5, 2015 at 8:08 pm
#15394
There are several significant differences between the 5.5 and 6hp powerheads. First and foremost are the 6hp has needles on the crank ends of the rods. You would also need to make sure the cylinder head of the 6hp fits the 5.5 block (I’m pretty sure it will) as the 6hp head has the angled plugs to clear the cowling. You’ll also need to swap the flywheel to work with the spiral recoil. Overall, I think it’ll work…