welderman85 53 #1 Posted July 21, 2013 hi I blew up the 11 hp motor on my lt1137 I have a 12 horse opposed twin and a 12 single but don't know what one is better to swap in. thanks Share this post Link to post Share on other sites
Wheel-N-It 2,976 #2 Posted July 21, 2013 I don;t know either but the sound of a twin sure is sweet! Share this post Link to post Share on other sites
Fordiesel69 271 #3 Posted July 21, 2013 Twin will use more gas, but has more power. Fitment may be a concern...... Share this post Link to post Share on other sites
jeremi3210 742 #4 Posted July 21, 2013 The twin will run smoother. Share this post Link to post Share on other sites
wheelhorse66 10 #5 Posted July 25, 2013 the twin is good but it wont have no more power than the single if it were me i would go with the single and the single will be easyer to work on Share this post Link to post Share on other sites
boovuc 1,090 #7 Posted August 10, 2013 Never heard of a 12 twin. Some twins might require the isolation cradle to mount and keep the PTO at the right height and center location. The single would be a drop in fit if it was off a WH. On any single less than a 12 I would say go with the twin but with the 12, I would say go with it based on overall power, ease of service and no mods required to convert. If the twin wasn't from a WH originally, you must make sure your crankshaft end is inch and an eighth with the <3.5 inches of length and a .25" keyway or your into more mods. (Not counting muffler clearance, wiring, etc.). Share this post Link to post Share on other sites
leeave96 490 #8 Posted August 10, 2013 Never heard of a 12 twin. Me neither, but coming from me - that ain't saying much... I swapped a 14 hp twin Briggs Vanguard into my Simplicity Landlord. It originally had an 18 hp Briggs Vanguard. The 14 hp is the smallest twin I've ever seen and I've look around and any replacement in a Vanguard twin form is a 16 hp at min. Share this post Link to post Share on other sites
