'79 225 engine -is it a hydraulic lifter engine?

My 80 was a hydro. I subbed in a solid from 77. I believe a 79 could be either,
but if you start it up, you should be able to hear it.
Ha!! I can't hear chit!! The dog ate my hearing aid!!! No that is a lie, I can't afford a good hearing aid!!! Thats is the truth! I told that to a lady other day she told me her cat hid hers no joke!! lol
I do good to ever hear a slant when running!!! Even with glass packs.