Which valve spring height mic

Trying to measure a stock magnum head so it has a .930" diameter by .230" tall step. The brian tooley mic doesn't fit over the step, will the 1.4-1.8" mic from Comp fit? Looking at you Dwayne :P

https://www.summitracing.com/parts/cca-4928

use a snap gauge and a dial caliper, fits anything.

Small diameter retainers will sit down inside the recess of a std height mic.
The recess is usually .150” deep, so you would deduct .150”(or however deep the recess is) from whatever the reading on the mic is(1.800 reading is really 1.650 IH).
So, when working inside the recess........ the range for the mic has to go at least .150” taller than the actual installed height for the parts your working with.

As mentioned, you can get it done with a snap gauge and a caliper.
Even just a caliper will work okay on some heads.

I have next to zero experience with Magnum heads, so I can’t say which mic will clear the factory spring step.
If I were trying to assemble the heads and my mic didn’t fit, I’d just measure it with something else.

I have been using a snap gage for years.
It gets the job done. I do have to be careful since the snap gage diameter can interfere with the step in the retainers.
And similar with the valve spring pocket in the heads. So try not to have the snap gage at an angle.
I should just buy the spring height micrometer, but I have read some not so good reviews of the less expensive ones.

Small outside calipers work fine for me, quick, fast and easy

I'm staying with a friend and they don't have much, the retainer step is far too small for a snap gauge even if they had one. I can get calipers in there just barely but I'd prefer to use a height mic. Gonna see if the comp one works, will let you know. If the beehive retainers fit a bit deeper that will be a bonus IMO there's not much room, if the new one doesn't clear the step I was going to find a local machine shop and borrow some valve spring shims to space the height mic above the step.

what is the difference between the height mic for beehive springs?

https://www.summitracing.com/parts/cca-4930?rrec=true

Like Dwayne eluded to the smaller OD of the beehive retainer can drop in the recess on a standard height mic. So I imagine the beehive mic has a smaller upper OD to catch the smaller retainer