I recently acquired a 1979 Jaguar XJ-S, however one of the valves decided to drop down into the cylinder, break into many pieces, and send shrapnel into the entire left bank via the intake manifold.
What to do? Swap in an LS3 E-ROD with a T56 manual, of course!
This should add ~130HP, save about 400 pounds, triple the gas mileage, and make it a proper sports car!
Stay tuned!