Pogo wrote:
Wow.

Think you'll ever get it all back together again?
How are the banks and cylinders ordered (the numbers and letters), and is it pretty standard, like engines on multis?
Or did I miss it (just looked again, didn't see anything)?
The Heads and Banks do have part numbers but generically speaking the H/B is specific to a series of the engines produced.
Merlins and Griffons both have the removable H/B design. And the design of the H/B changes as an engine design evolves.
The H/B assys of many of the later models of an engine can be retrofitted to an earlier mark of an engine.
Many Wartime Merlin models in todays P-51s have post war transport 500, 600 or 700 series H/Bs installed. They are later technology and were designed for use on transports and airliners which needed long periods between maint and enhanced reliability.
The Spit here is a Griffon 65 but has Griffon 58 H/Bs, like what I just pulled in the latest post, installed instead of the original Griffon 65 H/Bs. The 58 banks fit right on but have slight differences in how the oil lines connect along with other minor differences. They also were produced later and offer the latest mods and upgrades and parts made as the Griffon 58 was used by the RAF until the early 1990s. There is still many NOS and overhauled parts around due to this.
As far as bolting it back together- This is kinda a lets see the condition of this engine and hopefully be able to collect some needed spares from it. If this gets overhauled it will get sent off to an O/H shop.
Ordering parts is normal, look up numbers in the parts book and try to find someone who has it.