Jesel or T & D. I read your other post and with the money you saved on the block, a top notch valvetrain would be money well spent.

My 440-1 heads use Jesels, one pair of rockers per cylinder. You eliminate that long shaft and the rockers themselves are very strong, I have not hurt one yet. A close friend of mine had the same results with his T & D rockers.

Nothing against Harland Sharpe, they have their place, but are not on the same level. You will also be needing new pushrods and should be considering how you want them to be oiled. I use the spray bar valve covers, but a lot of guys prefer pushrod oiling.