mopowers
Well-Known Member
Finally someone who's actually done it and not just read about it on the internet. Have you ever converted a set of these factory roller lifters?
Converting Hyd Roller Lifters to Solid
- Thread starter mopowers
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I know it's just a theoretical question, but, usually the purpose of going from hydro to solid is purely for performance. The RPM range moves up. That is a ton of lifter body to move, with a less than ideal lifter angle already. It's been done, and will continue to be done, I know...... An actual solid roller lifter that is actually designed to do the job will be best. I have done it only to use as a checker for degreeing camshaft.
No, the RPM range does not necessarily move up just by switching from hyd to sol lifters. If the springs are adequate, there will be no lifter pump up with the hyd lifters & there would be no change in the RPM range. If the springs were too soft, you could get pump up with hyd lifters......but you could also get valve float with sol lifters.
I didn't think I needed to explain it so thoroughly. Usually, when one goes to a solid roller, the profile is more than STOCK..... Remember, just a theoretical question in the first place.....
mopowers
Well-Known Member
Some bonehead (me) lost one of the retaining rings of the lifters I've been cleaning up to the moon's gravitational pull. Does anyone know the appropriate size internal snap ring to use as a retaining ring for these lifters? It seems to be between a 5/8" and 11/16" internal snap ring size. I'm thinking 16mm? Time for a trip to the hardware store...
And didn't even know it. LOLsomebody got rickrolled
I've not seen any. That said, I've often wondered if solid roller lifters could be machined with the flats to allow the dog bones to hold them in place......
Ramm did something with lifters that had the wrong flats orientation on a build using jesels or something like that. A knucklehead in here made the suggestion
360 Magnum Build SFS (S-crounging F-or S-craps)
I'm open to suggestions. J.Rob I would think about cutting the yokes off, rotating them, and then welding them back together on a fixture. If you TIG weld then normalize afterwards, shouldn’t have to worry about it fracturing. I don’t think you can know that geometry but if you had access to a...
www.forabodiesonly.com
I'd spin out a spacer turning the OEM hyd into a solid. Starting with a fresh solid roller, gonna have to machine them a bit
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harrisonm
Well-Known Member
Again, I have to ask, Why? Why not just buy solid lifters? Unless this is just thinking out loud.
It's a way to get solid rollers using the oem hyd bodies/dogbones in a roller LA/Magnum block
mopowers
Well-Known Member
For anyone who sees the thread in the future, the 16 mm snap ring might work. I picked one up and installed it, but the ring is fully expanded without any tension in the groove. In other words, it's a tad loose. I may try to see if 16.5 mm (or whatever the imperial equivalent is) snap rings exist.
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Cuda416
Well-Known Member
These are the snap rings that were suggested to me by a member here (can't remember who).
Hydraulic Lifters Snap Ring
Hydraulic Lifters Snap Ring
mopowers
Well-Known Member
I saw those and ended up calling them. The gentleman I spoke to told me that since they're designed for smaller Chevrolet lifters, they would likely be too small for a Chrysler application.
Did you end up buying them? How did they fit?
Cuda416
Well-Known Member
I bought a couple to test and the one I tried seemed to work just fine.
mopowers
Well-Known Member
That's great to know. Thank you.
Cuda416
Well-Known Member
Also, without comparing actual measurements I don't see how that statement even makes sense.
People use chevy rods, rockers etc on these motors, the only thing that should matter is the size, not the application.
mopowers
Well-Known Member
It's the size that's the issue (according to the guy I talked to). Chevy lifters have a .842" OD whereas Mopar lifters are .904" if I recall. I would assume the OD of the snap ring groove is larger on the Mopar as well.
Cuda416
Well-Known Member
I'll show a pic later. The snap rings are pretty close and the crower ones are, in my opinion, far less likely to self eject from the top of the lifter in any case.
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