Well, I just got this email:
Tony
I've owned the car since I got out of the Navy in 1972. It is a 1966 model and the first thing I did back then was put a 215 Buick all aluminum V8 in it with a Muncie and a Jag independent rear end. The engine eventually got changed for a 215 Olds Jetfire that was turbocharged. The car was featured in the original Hot Rod Magazine Engine Swapping Guide. I drove it for about 10 years and had a mishap that crunched the front. I didn't have a good place to work on it then and I sold the drivetrain and just kept the body. The car sat until 2001 when I decided to redo the car using Corvette suspension and an LT1 engine and 6 speed trans from a Z28 Camaro. The last time I narrowed the jag rear slightly to fit under the MG fenders, this time I widened the car (11") to fit over the Corvette suspension. There is less than 300 lbs of original MG steel left in the car - I have fabricated everything. It has a steel tube frame that is welded into what is left of the original monocoque. When I get done it should weigh somewhere around 2,300 lbs and the engine should produce somewhere around 425 hp. A 500 hp Viper has a power to weight ratio of 6.8:1, this should be 5.4:1. It will roll on 9.5" wide x17" front wheels and 11" x17" rears. I am at the point where I have to make new rear fenders with slight bulges to cover the tires and other various new body panels. I built a helve hammer, power shrinker and an English wheel to do the metal work - time now to start beating on some sheet metal.
Jim