will a looper powerhead fit on a crossflow leg?<br />79'85hp 20" evinrude, 87'140hp 25" evinrude.<br />it looks like from outside, the mid plate to leg <br />gaskets, mite be the same . if so,are the splines<br />on the lower units the same? crossflow lower to <br />looper crank shaft? If no on both questions,<br />who has a 20" looper leg for sale? thanks