HI GROUP! MY 383 HAS SCAT RODS AND CRANK,5.7 RODS AND A CAST 3.75 CRANK.MY QUESTION IS WHEN I TRY TO INSTALL MY NEW HARMONIC BALANCER,THE CRANK SNOUT ONLY GOES HALF WAY THROUGH BEFORE THE END HITS THE CRANK GEAR. I BOUGHT THE NEW BALANCER FOR A 78 400. IT TURNS OUT IT IS THE SAME AS THE OLD ONE.IT SEEMS TO ME THAT THE BALANCER SHOULD BE ON MORE THAN IT IS. SHOULD I CUT THE BALANCER HUB DOWN TO BRING IT CLOSER TO THE TIMING COVER OR DOES SOMEONE MAKE ONE THAT WILL WORK.THERE IS A BAZILLION 383s IN USE,IM JUST NOT FAMILIAR WITH WHO TO CALL OR WHERE TO GET THINGS.I BELIEVE THIS ENGINE IS EXTERNALLY BALANCED,THE DAMPER IS 8 INCHES IN DIAMETER WITH MACHINING DONE ON THE INERTIA RING AND THERE IS A THIN WEIGHT ON THE FLEXPLATE.THANKS FOR ANY HELP!!!