If you go to 103ci, do you research and find the right combination for your dresser in the way you ride, with a little bit of head work, The 103 will net you numbers somewhere around 110hp110tq or 110hp to 115 torque. The motor wont put out as much heat, and when you get to your next 50,000, you can bore to a107. Just my thoughts. I went to the one 103 on my full dresser from a 96, and the final Dino curve was 104 hp and 119 pf of torque I do run an oil cooler, two up I can certainly get 38 to 40 miles a gallon, and with the camshaft Ive got in there, I can drop a gear and get from 75 to 100 as fast as most anybody, only I am usually loaded two up. Dont get me wrong, a lot of guys like the 107, however, when I wear out my 103 cylinders, I can rebuild the top end one more time with jugs and pistons only. If you go with the 103 with a good set of cams for your riding style, all you will need is pistons, upper gasket set, and a re-tune, saving you lots of money on Your next 107 rebuild. have a nice day. Thats just my two cents worth! Or, put in a set of Andrews 48 cams with a good tune, and thatll net you close to 100 100 with only a cam swap in a tune. Thats another thing to think about.
Last edited by Harley1004; Apr 4, 2022 at 10:46 AM.