The illustration below shows the engine mounted with most of the connections completed.
Engine bay detail
An XAir over-the-radiator (OTR) air filter fits through the modified radiator crossmember. The straight-ahead configuration is optimal for handling airflow.
Over-the-radiator air intake with custom radiator and A/C condenser
The modified Corvette-style cooling system is tucked into the right forward section of the engine bay with the Radium reservoir fill cap at the highest point in the system.
Radium reservoir, overflow tank and other plumbing
First engine start
I have been out of touch with your project progress, but count me now as “back in.” Love what you are doing, and you have come a long way. I will back track and red through ALL of the entries to see what you have been up to. With all of the ancillaries it looks like the LS3 is still a tight fit in the XJ6. Would it have gone in the MK2 with air conditioning?
Lin