Quote:
Originally Posted by Crumpp
Do you know what a cylinder head spigot is on an engine?
Cheers,
Crumpp
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In the Merlin engine, it is my understanding that, the spigots were on the cylinder liners. The Cylinder Head had recesses that accepted the spigots (presumable to ensure accurate alignment).
I don't think any other spigots (if any) on the cylinder head have anything to do with the modification.
Cheers!