They will physically mount up , just look a little funny!
Can I use...some hooker headers that are for a truck and use them in my boat? You know just flip them over and put them on the other side. Upside-down? Will it work ?
No, it will not work because the exhaust manifold studs are at different distances from either side of the exhaust port (LH is different distance from port wall then RH); therefore, when you bolt the headers on upside down the port alignment will be WAY off.LO