Thanks to Thomas Willig who has provided a table of V8 Bristol car part sources and commonality with other non-Bristol cars.
The table is in PDF format and can be found in the resources section
here
Please restrict contributions to this thread to concise additional information that you know with certainty about other V8 car parts commonality/sources.
Thomas will update the table from time to time, and I may remove comment clutter!
List updated 30 Nov 2023.