I just got a set of un-used polished Ansen big block ball-milled valve covers for the SS. These are the same ones sold with the copos, Yenko, ZL1, and others. My problem is that the holes for the oil fill and breathers are the older twist-on style. Does anyone know of a company who sells polished ball-milled breather caps (no pcv), and oil fill caps in the twist-on style? Does any company make caps that have a retrofit for the newer push-on style? I can find plenty of these. Or will I have to have someone reverse-weld a new bung style fitting in the interior ov the valve covers?
Any help would be greatly appreciated,
Mike