Does anyone make an oversize alternator pulley that looks stock,or from what I've heard the Z-28 came with a bigger one,will this fit on a standard 53amp alternators shaft?If so,who carries them?I'm going to be turning higher RPM with my 327 now,I figure this will help save the bearings,maybe prevent throwing the belt,and maybe even pick up a HP or two.
D&R Classic, National Parts Depot, and Classic Industries all have the larger dia. "deep groove" pulley. Yes, they will fit your 53 amp alternator. They go for about $25.00-$30.00 or so. Hope this helps.