In the story I read about, ENDYN did the machining and assembly. I don't know what was wrong with the motor except for the fact that the guy claimed it had less power than stock when he got it back. He claimed that he spent $10,000 in the end, and was charged for things he didn't even want. I don't know if it was a sleeve issue or not.

Although I have assembled a couple of ZC's to stock specs before, and I am familiar with plastiguage etc. I don't want to assemble a motor that has had clearances modified by someone else

For example, in order to use the 90mm roller waves you have to machine away matierial from the combustion chamber. I would also like to use oversized valves, so the size of the valve releifs on the pistons has to accomodate the valve. I just don't feel comfortable assembling a motor that has had these kind of modifications done to it by someone else. And I don't have a lot of the tools that machinists use to check clearances and such.

I would like to have confidence when sending away a perfectly fine stock motor and a grip of money to a shop thats half way across the US. Its not like I can just drive over there and check on my motor, I'm in Florida.

I thought about assembling the motor my self. Its just not worth taking the chance for me. I would rather pay the extra cash, let them double check everything before assembly, and just drop it in and be done with it.

I was pretty much set on doing what I stated above, then I started reading the horror stories. So I started thinking. What if I don't get what I pay for? What if its all hype? What if the modifications arn't performed? What if they are done wrong? What if I'm charged for services that I didn't ask for? Like a $600 oil pan. You get the point.