Guys with Crane Cams Book- Need Help

Also, what engine is it for? The coldest I found is part number 150052 for an LA, which is a 272 energizer hydraulic flat tappet.
Okay, I found 150062, 282 Energizer for an LA small block.
The correct spring for that is Crane
99835-16. I’ll get spring specs so you can cross reference it in case you’re modifying your installed height/valve legnth/etc.