is there a book or listing of long block #s? like HB -1 491032.....HB 2(491033)..... HB3 491034.......HB 4 (491035.....HB 5 (491036........HB 9(491037.....HB 11(491038....it looks like all are horizontal shaft 6 and 8 cubic inch 6100... 80100..... 80200 and 80300 series......6 cu inch is maybe the 2 hp?.....or spec on crankshaft type ?.....im doing mostly 80202 3hp engines thanks
