I would run a solid roller lifter on a solid lifter cam. I know many who have done it, but there are concerns.

Cams designed for a solid roller, should have a solid roller lifter.

Cams designed for a .700 wheel lifter, should have a .700 wheel.

Cams designed for a 1.7 rocker, should have a 1.7 rocker.

Mixing and matching that stuff around, will have consequences, and sometimes detrimental.

I've been doing it for 10+ yrs w/ never a hiccup.

my personal bbc's w/ whipples,have the same springs from 2004 and still in.using the isky cam w/ 228/238 duration on 1.8 rocker arm.springs were top of the line isky's w/ that nascar polish treatment,forgot that the looked like chrome plated.when it comes to springs,you get what you pay for.

I certainly would call the company or grinder who designed your cam, and find out what kind of ramp your lobe has, before making that swap. Running a solid roller, on a hyd cam that has a very agressive ramp, can beat the helll out of the valve train. Solid roller lifters are designed to have a specific lash ramp built into the lobe. Your hyd roller, may or may not, have a ramp that is compatible. Probably not an issue with a mild street lobe cam, or factory cam, but can be an issue with a modern aggressive hyd roller lobe.

Here are my 2 setups over the years. I was losing a cam when I switched to my new setup, but they were used reground cams when I installed them in 2008.

Ultradyne Solid Roller cams 252/264 LS 108, Lift IN 0.667" 1.8 Scorpion Rocker, Ex 0.632" 1.7 Scorpion Rocker, Isky Red Zone Solid Roller Lifters. Lash 0.024" Cruise @ 4600RPM,
WFO 6500 RPM Usually running 5000 RPM everywhere :)

Comp 943 springs = Installed in 2008-13 200+ hrs JimV's setup (300hrs on cam, used cam)
I.D. of Outer Dia.: 1.136"
I.D. of Inner Dia.: .812"
Seat load: 240lbs @1.900''
Open load: 598lbs @1.250''
Coil bind: 1.150''
Rate: 551lbs/in

Current setup using both JimV's and Bob M's expertise :)
Hydraulic Roller Cam Lift In 0.684" 1.8 Scopion rocker, Ex 0.665" 1.75 Scorpion rockers same Isky Solid rollers rebuilt by Isky $20/ea, Lash 0.007" Cruise @ 3900 RPM, WFO 5600RPM
Comp 933 springs
I.D. of Outer Dia.: 1.136"
I.D. of Inner Dia.: .730"
Seat load: 170lbs @1.950''
Open load: 489lbs @1.300''
Coil bind: 1.200''
Rate: 490lbs/in

This is a custum grid cam by Bob Madara, I will contact him and see what he thinking about hydrolic to mecanic lifter swap on that cam.

Good plan.

Have you made it out yet this year? I was out on Lake MI last Monday and froze my A$$ off! lol

Not yet, waiting on upholstery guy, and some other little stuff :picard1:

Also as I understand (on good sources) the Spintron can replicate all the Nascar tracks and valve trains are set up and tested for each track. Now the engines set up for the long tracks will most likely self destruct if run continuously at 5-6k. Among all the great information the Spintron can gather it has enabled the valve train designers to see the effects that harmonics have in the demise of valve train components! This brings us back to Joe's original question.