Wheelhorse84 87 #1 Posted July 22, 2012 Will a 12 hp kohler from a c-120 fit without much hassle on my b-80 4spd? Share this post Link to post Share on other sites
Kelly 1,033 #2 Posted July 22, 2012 It will probably hit the hood, in front, the early B-80's with 4 speeds had a little shorter frame in front of the engine. Share this post Link to post Share on other sites
TT-(Moderator) 1,162 #3 Posted July 22, 2012 As far as the physical installation of the engine, the B-80 / 4 speed has a 43.5" wheel base, so it should actually be the same deal as the B-100 automatic with the K-241. The right front engine mounting bolt (threads up in to the bottom of the oil pan) can't be used, so a J bolt hooked under the frame rail edge and up through the outside corner hole of the oil pan will be required to secure the engine at four points. Wiring, control cables, gas line, etc. may need alterations/modifications. I haven't had my B-80 / 4 speed since 2007 so I can't get a measurement, but I'm thinking ~and I could be wrong~ that the hood top panel is the same length as the 45.5" wheelbase tractors. They just angled the grille portion rearward to meet the hinge. There should be room for the "big block" air cleaner, but not in excess. If anyone wants to back me up on this, feel free. :handgestures-thumbup: Share this post Link to post Share on other sites
rmaynard 16,350 #4 Posted July 22, 2012 I have a naked B-80 4-speed frame, and only one hole lines up with any of the engine mounting holes on my K301, the tab hole nearest the drain tube on the flywheel side. There are no holes even close to the 10-1/2" oil pan holes, and no hole for the front tab on the flywheel side. Picture coming. Actually, I was looking at the wrong holes. I put a battery holder in place and found that there are holes that might line up, but it would put the engine too close to the front. Share this post Link to post Share on other sites
Trouty56 567 #5 Posted July 22, 2012 That frame is shorter by 2 inches. I just used one for a 12 hp build. The hood must have a different hinge setup. I modified mine for a 60's hood. Sorry. I was useing my phone and didn't see the whole discussion. Should have stayed out of it. sent via mobile.... Share this post Link to post Share on other sites
bowtiebutler956 650 #6 Posted July 22, 2012 My 74 B-80 has a K301 on it, and it fits great. I got it with this engine already on it, but here are some pics. Matt :flags-texas: Share this post Link to post Share on other sites
oldredrider 2,553 #7 Posted July 22, 2012 Matt, you're missing a mule drive cover...lol! 1 Share this post Link to post Share on other sites
KC9KAS 4,744 #8 Posted July 22, 2012 Matt, you're missing a mule drive cover...lol! Private joke?? Share this post Link to post Share on other sites
bowtiebutler956 650 #9 Posted July 22, 2012 Matt, you're missing a mule drive cover...lol! I'll put one on there one of these days. I'm very suprised nobody has commented on my Craftsman seat. Did I just say that? Oops. Matt :flags-texas: Share this post Link to post Share on other sites
Tankman 3,523 #10 Posted July 23, 2012 Besides the seat, are the headlamps stock? Nice Horse! Very nice including the seat 'n lighting. Share this post Link to post Share on other sites
