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29 Posts
Hey guys, been busy as hell the last few months and havent been on much. Part of my reason is below. I know there is some talent on here and hopefully it will show! We are currently finishing a straight axle Willys coupe with a 383 stroker motor. The motor was originally built by AR Racing engines in Sumerduck, VA....what a piece of S&%$. These guys ground through the bottom of the cylinder in 4 places trying to make clearance for the stroker setup and tried to hide it with block filler...that was only the first of the terrible work and to make a long story short when I was very pleasant about it and only asked them to cover the price of a fresh block the owner of AR basically stopped responding. I would avoid their work like the plague. If anyone wants more info I am happy to provide it. Anyway.....on with the questions.
The motor seems to shake quite a bit more than a mild cam motor should, when we had the crank out to swap blocks there were no weights or non factory work to show that it may have been internally balanced, and it came with a 8" balancer with a counterweight. It is a two piece rear main seal crank. The original builder (who obviously couln't be trusted 100%) also supplied it with a zero balance 350 flex plate which I just replaced with the correct 400 flexplate with balance weight hoping that would fix the problem.....it did not. We have about 11 degree of static timing and about 25 or so of advance in the distributor, have checked the firing order numerous times etc etc.
I am running out of things to look at so hoping maybe someone has had a similiar issues and can provide some insight. My next step is to swap the torque converter just to double check.
The motor seems to shake quite a bit more than a mild cam motor should, when we had the crank out to swap blocks there were no weights or non factory work to show that it may have been internally balanced, and it came with a 8" balancer with a counterweight. It is a two piece rear main seal crank. The original builder (who obviously couln't be trusted 100%) also supplied it with a zero balance 350 flex plate which I just replaced with the correct 400 flexplate with balance weight hoping that would fix the problem.....it did not. We have about 11 degree of static timing and about 25 or so of advance in the distributor, have checked the firing order numerous times etc etc.
I am running out of things to look at so hoping maybe someone has had a similiar issues and can provide some insight. My next step is to swap the torque converter just to double check.