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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.



Oh yes oiling
that does have to be addressed since the hollow shaft will be gone.
push rod oiling?
does that require different roller cam and cam rollers along with push rods? IT must.
Valve cover spray sounds like it may be less cost but is this as effective?
Bob @ Bartons say they have a rocker system similar to Jesels but he seemed a bit mysterious about the whole deal? he wouldn't give me a price or and any particulars..

Since with the Jesel or other serious upgrades the heads will need to be machined.
Only have once chance to do this kind of thing.