Which engine is used to make 24valve P pumps?

[clarkoh]

If I was doing a 4BT, which head would used to make a P pumped, 16 valve?

 

[clarkoh]

If I was doing a 4BT, which head would I use to make a P pumped, 16 valve?

Which engine / pump configuration is used to make P pumped 24 valves? Is there an equivalent 16 valve engine?

 

[CorneliusRox]

I'm not a 4bt expert or anything, but I would guess that any 98.5+ 4bt engine would due.