I own a Toro Wheel Horse 8-25 which has a bad Techumesh 8 hp engine TVXL195150237. Not rebuildable through a rod cracked block. Looking for a Briggs & Stratton that will fit. The problem with these 8-25 is "looking at the mower from the rear" the right side has the drive chain which gives you around 4 3/4" to the shaft on the engine or 6 1/2" to the support bar. The left side has about 9 1/2" to the support bar. Has anyone fitted a Briggs into one of these tractors? I saw a youtube that had a 10.5 hp Briggs in it but I can't get the owner to give me the model number off the engine. I looked on line and saw a Briggs 21R722-0074 but it needs 8.4" on the right side and I have 6 1/2" to the support bar never mine the drive chain at 4 3/4"