After 90 hours of stripping, cleaning, machining, respraying, overhauling, re-assembling, tweaking and cursing, the engine is rebuilt and mated to the gearbox in the chassis! The final result looks really cool, and looks like it just came out the Solihull factory back in the early 1970's. Every component was stripped and restored or rebuilt (even the alternator, carburetor and oil pump), rather than purchasing a new one (sticking with the original spirit of the project).
Installing the engine to the chassis and mating it with the (already rebuilt) gearbox went flawlessly, despite the fact it was installed single-handedly by yours truly (with the assistance of an engine hoist, of course!).
More information about the engine rebuild is available on the main website, at: https://www.landyrestoration.com/engine