Old golf carts used to have these, i can't find any locally. Anyone have any idea where to find some? Yes they have to be steel per our rules.

Anyone know if there is a difference in journal sizes, stroke etc... between the 31 & 33 avs cranks. I'm wanting to have Tommy D. balance another full pressure crank for me but can't find another 31 with one in it. I know alot of the newer 33 avs's have them but didn't know if mag,rod & pto journal's and stroke were the same. If the 33 crank will work in the 31 it will make my life easier!!

Thanks in advance!!

Here's the question of the year, has anyone got ahold of Rocket Ron's lately. Several of us have been trying (alot!!!!) with no luck. A bunch of us need his brass weights for the avs motors quickly but can't make contact. Has anyone out there used these and if so are there any other changes that have to be made. We are in a stock motor class, ALL STOCK, but our association is making a rule change to allow eliminating the avs balance system because they break and we can't find any 31synchro motors to use anymore. The goal is to keep cost down and keep the motors as close to stock as possible. Does anyone know if anybody else has brass weights for 31avs motors or a better way to get ahold of Ron? All help, guidence and good accurate information will be greatly appreciated! Remember when replying, no billet rods, aftermarket pistons, cams, etc. Just eliminate the avs balance system as economical as possible to make them run and not break. Thanks a ton!!!

So many diff. opinions, so little time to evaluate them. I want to know the best fix to my 31avs to make sure I dont have problems with the avs system. Our rules on motor mods are very specific and limited. (you can review them at: www.pukwanamowerracing.com., look under the Modified class engine rules ) No porting/polishing of any sort. We can shave the head for "proper seal  ".  Any internal part must me OEM from briggs, no billett this or aluminum that. Doesn't matter what motor it came out of, as long as we can order it from Briggs as an oem part.  Ive been told to put an old style 28 crank in it with a bushing in the pan. If that's the best fix, will any 28 crank work and if not, exactly what do I need to get it together? Does putting the different crank in change anything as far as stroke or anything else that would effect power? Is there a non avs 31 or even 33 crank that would work and make more solid power or is the smaller 28 crank better because of less rotating mass? I am not an engine guy so please don't overwhelm me with technical info. Part numbers/links/etc will be very much appreciated! Side note, what carb would you suggest (Walbro model #). Maybe George H. can tell me which one they have would work the best and still be legal. We are currently in the build stage of the chassis and will have to be ready for test-n-tune by April 30 so I really need to get moving on this. Thank you a ton!!!!! in advance for your values advice!!