what is all entailed when swapping from a hydraulic camshaft to a solid?

thanx all

Please see this thread already in progress.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

You need to change the cam, lifters, pushrods, rocker arms and I believe the rocker shaft to swap from hydraulic to solid or from solid to hydraulic.

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Joshua

Also heard that swapping the rear bolt on the rocker shaft is a good idea, that way when you go to set the valve lash, you dont have excessive oil up top.

~THOR~

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1984 D100 Shorty Custom
Certified Auto Appraiser - RevItUp Classic Appraisals
President - Cherry City Bombers CC
Part of Tyrde-Browne Racing

Don't know for sure, but I think the bolt cannot be swapped. It has to match the threaded hole in the rocker shaft stand. The amount of oil up top is a function of the rear cam bearing journal. That is what meters the oil. The solid cam has two intersecting oil holes, that give a "pulse" of oil every cam revolution. The hydro cam has an annular groove, that gives constant oil flow.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

Very possible that what you say is true. I can't seem to remember where I heard this from, but the explanation was that the shank on the bolt was a smaller size, to allow extra oil to flow up into the rocker shaft, so more would travel faster down to the lifters. The solid setup had a bolt with a slightly larger shank, so less would flow, seeing as how it doesnt need to feed a few hungry lifters....

Any experts on the topic have an idea?

~THOR~

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1984 D100 Shorty Custom
Certified Auto Appraiser - RevItUp Classic Appraisals
President - Cherry City Bombers CC
Part of Tyrde-Browne Racing

It is correct there are at least two different bolts. I have seen that many, myself, but they were both on solid lifter heads. The shank, and the threads are different. I have never seen if the hydro heads are different, then these.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

FWIW, when I put a late hydraulic head on my solid lifter engine, I use my rocker arm from the solid engine and had to use the bolt from the late head. I did notice some extra flow, but so long as you drop the RPM's down to 500 when setting the valves, its not an issue.