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Back Forty Bob. 02-12-2013 11:27:40 69.81.130.248 Report to Moderator	Hi All, I was just wondering how hard it is to make a competitive puller out of an R Moline? I was thinking 4500# and under class 3 or 4. Might be something different than orange or red. No offense meant guys. Thanks. Bob. :) This post was edited by Back Forty Bob. at 13:09:38 02/12/13. [Reply]   [No Email]
Mopower 02-13-2013 05:48:46 64.208.152.151 Report to Moderator	Re: R Puller in reply to Back Forty Bob., 02-12-2013 11:27:40   A switcharoo for a ZA angine is easy and cheap. You'd be jumping from a 165cu.in. 4" stroke to a 206cu.in. 5" stroke just by bolting it in. The power and size are limited using the sideways flathead engine, but a Z at least has a center main. By boring, porting, cam, and such on the stock appearing ZA engine, the 50-60hp range is possible. There is a stroker in my area that runs somewhere around 70hp. This style engine breathes rather poorly due to the many bends the air has to take to enter the combustion chamber. The later 206ohv (or almost identical 220ohv) will bolt in with very little modification (coolant hoses). Check your club's rules. The 220 LP gas power unit was rated 66h.p. at 1900rpm. It would take quite the ZA engine to get close to that. The weak point in a high horsepower R is the tranny. That could be remedied somewhat from what I've seen. I'd pull an R in 3000/3250/3500#. There was a local R that split its tranny in 4500# deadweight. The largest small block MM to my knowledge is 4.44" X 6.5" 402 cubes in a ZT. In talking to the owner, 445 cubes would be the hairy maximum. A local 335 ran 347 cubes for years in a 335. But just for low budget fun's sake, 206 ZA engines are a cheap power upgrade, fun and easy to tinker with, and have some neat tricks to making them run well. I have many of those parts laying around as well as a complete 206 engines of both ZA F-head and 445 ohv style. Good luck with your project. [Reply]  [No Email]
gtx1967jewison 02-12-2013 20:53:49 174.254.240.71 Report to Moderator	Re: R Puller in reply to Back Forty Bob., 02-12-2013 11:27:40   Theres a very strong one in my area, no idea whats been done, but it looks stock to me on the outside- however im not a moline expert. [Reply]  [No Email]
Back Forty Bob. 02-12-2013 15:59:24 69.81.130.248 Report to Moderator	Re: R Puller in reply to Back Forty Bob., 02-12-2013 11:27:40   I wonder if NATPA would let me do that? Thanks for the help. Bench Pulling is fun and cheap! [Reply]  [No Email]
VicS 02-12-2013 18:15:24 70.195.64.26 Report to Moderator	Re: R Puller in reply to Back Forty Bob., 02-12-2013 15:59:24   Why couldn't you use a late motor in a Moline? You can use a late motor in a Allis or a John Deere. But if you can't where you live just call it a 335. [Reply]  [No Email]
SECOND CHANCE 02-12-2013 15:50:56 64.184.107.105 Report to Moderator	Re: R Puller in reply to Back Forty Bob., 02-12-2013 11:27:40   If your rules make you have the same type the R or Z ENGINE must be used i have some parts or a complete engine in a R dont pull much any more. SEND me your number. [Reply]  [No Email]
VicS 02-12-2013 12:31:07 70.195.64.26 Report to Moderator	Re: R Puller in reply to Back Forty Bob., 02-12-2013 11:27:40   I guess you are talking about a Moline. If you are there is some good running R's out there. I would start with a U302 engine. At least the intake manifold.The blocks also have more meat. But if you are going to go big, probably makes no difference. Just bore it out and sleeve it. 400 cu should be easy and 500 possible. There was also some diesel crankcase's and blocks. A lot stronger. Some people start with a ZA engine,but will never run as good as a overhead valve engine. The motor you have just has 2 main bearings. A bad place to start. [Reply]  [No Email]