Re: converting an 1150 block into a 140/150 block
Yes...years ago when they were not so plentyful, and if you dont have the power ported piston it dont help anything. In the early 80's I would told you you was full of crap if you could buy a used inline for $150!!!! I have enlarged them(teardrop cut),narrowed them(3/4" strip),tripled them(3 1/2" strip cuts)squared ports,ovaled ports,played with transfer covers, raised/lower intake and exhaust ports all to get that elusive xtra HP. Some designs worked ok but you had to sacrifice somewhere else for it to work. Most of these mod's was for hulls under 400lbs and when it came to stock the Merc engineers damn near had it right. The early 1500XS would not run worth a crap on the heavy bass hull as they didnt have enough low end grunt to get em out of the hole. They just plowed along like prop was to large and your partner would have to go to nose of boat to get it to plane,once it broke over it would s##t and get it. If you want a bada** inline find you a T2x to play with as they are about 180 hp!!!!
