Re: Determining original bbc pulleys from aftermarket
My experience: The 291 crank pulley has a very light stamped #, the 824 W.P. pulley has bumps around the projected part of the snout where the pressed inner re-enforcement distorted the snout, the 1105 has a lip on outer front edge that you can catch a finger nail on, the 458 has a crescent shaped indention around the part # from the stamp. While these are not exactly fail safe, it is a good start of uniqueness of each. Plenty of pics out there to compare.
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69 SS/RS 396 M20 X22 Nor 12B,72B,712 bought 1979
FULL OWNER HISTORY
69 Dick Harrell tribute Day II 427 M20 4.10 X11 76 orig pnt, 711
67 Super Stock 302 Camaro re-creation
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