Just bought a T350 today (my first TVR), Its had the TVR Power 3.6-4.0 engine rebuild in 2008 but I can't find any info on this on their website.. was the warranty for 3 or 5 years?
Congrats on buying a TVR , hope you enjoy it . You could just ring Dom and ask him . Although if you have a car with a power upgrade i wouldn't worry about it . Just warm it up properly and drive it .