hello everyone!..

This is my first post over here, I have a 99 XJ8 which am completely in love with , but the engine has been giving me lots of headache recently!

the problem am facing is the lack of spare parts in my country plus the hideously overpricing when it comes to the dealer makes it impossible to even think of buying anything from them!

the engine was running into a few problems recently, and its getting worse by the day, my question, is there any engine replacement that can fit the jag? and by that i mean an engine from an american car like those 5.7 chevy engines or any similar powerful V8!?

Please help!!