Will a Generac made by B&S Model 49L977 28 HP SN 163SG5 or 1635G5 fit on a Dixie Chopper Silver eagle GVT 760 Model 0050581 SN 7859650 25 HP Generac. I need to replace this engine with only 209 HRS and found a 28 HP Generac made by B&S will it fit???????????????HELP!!!!!!!!!!!!!!!!! Please email ASAP as I have an opportunity to buy tomorrow! drbr.1@comcast.net