(1) my buddy Dog is helping me K.I.S.S. (he's gotta alot of work ahead of him). (2) I'm assuming the B&M 10236 is the external plate for the LA/727, yes on a stock externally balanced LA 360 (I ain't up on mags) with that B&M plate you then run any internally balanced 727 converter (OE or aftermarket). (it just moves the imbalance (that the OE eng needs) from the converter to the plate) so that you can run good aftermarket converters (which are internal) if you choose (& the eng doesn't care if the imbalance is in the plate or the converter) & you keep the offset 360 LA dampener up front. As we know OE balance is not the best for anything other than a DD grocery getter.