They (bc) both use a 3/8's Rod Bolt. Period. BC does not make a 7/16's rod bolt, and they wont custom make one (i have called) ....Crower runs a 7/16's rod bolt size. Thats BIG! They are the best, hands down. Theres a reason there nearly double.
Any way you slice it even the upgraded BC's still use a 3/8's....to me it doesnt matter how much stronger it is, its still a 3/8's....But then again im not a engine builder.
Good luck, if you can spare it i would go with the Crowers, TKMS has them for 744 or 830 shipped, i think. You can pm him, I guarentee his price is as LOW as they can be sold. GL.
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The purpose of ignition advance is to account for the lag time following spark ignition for combustion pressure to peak at 15 degrees AFTER TOP DEAD CENTER. A little fyi  ! |
