So what are your thoughts as to why the case bolts are snapping? I can't think of any mod done to your motor that would lead to case bolts snapping.. I would look at your crank and the possibility that it's way out of balance.. I flattened a lobe on a MB cam and ran it about 3 hours before I changed it out.. Didn't snap any bolts.. I gotta tell ya, your situation just sounds like a crappy block from Briggs to begin with..

If it was a crapy block, then why are there 4-5 other guys that are snaping bolts? after the Caddo run I know of 3??? that all broke at he same time.

My thoughts are all twisted right now. I think it is from bolts backing out letting the case and block twist. What you thinking?

Crap at one time i thought it was caused by heat. Then i checked it out and i was only running 198 at the hotest spot. That was with the factory oil cooler, not i was running just at 167 but the temp was only 70 and not 85 like it had been.

I had my motor on Willets boat for about 45 min run time. He let me run his prop and i ran it at 5000rpm for 3 runs lasting about 1 min each. Other than that i could not get over 4100 rpm with my prop and boat.

Ya you have 50 hrs on your rig and a few other do also. Does your stage 2 have the same as mine? Hell I dont even konw what I have. Not a single one of these motors performs the same way even if youput the same parts in them.

I have no beef with the people doing mods, i just want people to know that it cost big bucks to run these motor. If i would have know about all the problems i would have just baught another stage 1 36pd!!! The advice i was getting a year ago when I started saving for the stage 2 upgrade was we have plenty of motors with stage 3 that are years old.......but most of them dont have over 30 hrs.

When i get my rig back and it doesnt run with a stage 1 I will have twin 27pd and run stage 1.