Ok guys here we go...I have a bbc 402, and I've got a issue with the starter. The factory style starter was in it but super tight with the large headers, so I was going to throw in a mini starter. I bought one and when I mounted it and went to Shim it it would not fully go into the flexplate it would only go in about one quarter of the way and that was with me manually extending the Bendix. It was fully extended but it was like the flexplate was too far away from the starter. Then I realized that the factory starter only engaged the flexplate about one half of the way in, and a factory style starter should go almost 100% of the way into the flexplate. So then I bought a power master Xs mini starter, and I had the exact same problem the Bendix fully extended only engages the flexplate about one quarter of the thickness of the flexplate. The flexplate has been installed correctly, I can tell because the mounting pads for the toque converter are facing the torque converter. The torque converter is also flush up against the back of the crank. So then I went and bought a late-model starter for a small block Chevy, because they are factory style but smaller in size it also engaged the flexplate about one half of the way like my original starter did. The flexplate is a 168 tooth and my block is drilled for both staggered and in line patterns. I am at a loss here and need some assistance I have never ran into this problem nor do I know what could cause it, it's almost as if the crank is too far aft, and is making The flexplate too far away from the starter? I called and talked to power master and they said they could probably custom build a starter which would involve shaving the clutch is inside but they said this is not a common problem and seems like something else is the culprit. Both high torque starters I've tried to use I had removed the shams behind the mounting block and starter to push the starter as close to the flexplate as possible and it's still only engages one quarter of the way into the flexplate my tooth clearances are at about .032-.040. Any advice would be greatly appreciated!! The motor has had some work done, but not sure what, I bought this car pulled it off the trailer and into the garage for resto. But i wasn't going to pull the Trans or motor. The motor pounds the ground and sounds mean! But I need a mini starter so it won't die from the headers being too close, and will engage the flex plate enough to not eat it apart, HELP!!! Ps, I forgot I had also tried a summit brand mini starter, so that makes 3 different ones.