Though I can't vouch for what the chassis started life as Willie (along with the other members of 'The TR8 Squadron') runs a stonking V8 of 3.9L.
For more info on the championship see:
http://www.smrc-uk.com/championships...ics/index.html
With away rounds including BTCC at Croft we're not back at Knockhill until 12th August!
In the meantime I've got to get my engine re-built!
Steve