HP500 heads on a MarkIV?

[FULL FORCE]

Do HP500 heads bolt on to a MarkIV block? I am pretty sure they do, but can someone verify?

Anyone have 2 sets of fresh head rebuilds with Inconel valves?

 

[MOBILEMERCMAN]

500's are Gen V and VI. The last year '99 are Gen +

I don't know if you can miss match.