The stock rockers are known to punch through, but the bent one, and your mention of your son driving it, makes me think he might have over revved it. JMO
I looked down the bent push rod hole and it looks like the lifter is still in place.
If it’s still in place would I have zero pressure ? Or does the lifter have to be totally out to have no oil pressure ?
Cool on my recent 400 for possible parts.
Thks