Originally Posted By Frankenduster
The scallop is there to compensate for the engine balance factor. In other words, the B&M flexplate allows you to use any neutral balance converter. Grind the welds to remove the weights from the converter.

iagree up

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'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
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'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
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