Join Date: May 2002
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383 Flexplate balance
Quick question for you Chevy veterans. I bought a 383 for my 80 Chevy K10. A machine shop in my area had it for a year after a guy dropped it off to be built and left town without paying them. They sold it to me and I had them put in an RV cam with a Performer RPM intake. The machine shop put the entire motor together and I picked it up on Saturday. The damper was installed, but it needed a flexplate. I have 3 questions, before I drop this into my truck.
1. How do you tell the difference between an externally and internally balanced damper?
2. Do I need to get the flexplate balanced, since a 383 is normally externally balanced? Does it need to be balanced with respect to the crank and damper(the rest of the engine.)?
3. Is it possible to neutral balance a 400 crank(internally) and then get a neutral balanced damper and flexplate?
I do trust this machine shop, I just want a little info before I call them and make myself look like an idiot. Its also been almost a year since they put the shortblock together, so if there are things missing, I need to get them looking.