Graham
I have a Hitech GT40 (circa 1988)which I believe uses KVA shell. I recently got a new screen fitted. I got it from RAC Autowindscreens. Listed as Tornado GT40.
Many thanks Lee for your information and also Chris Melia for telling me that the GTD windscreen also fits. I always thought that the curvature was slightly different but it appears not and i feel a right "plonker" for not checking my GTD parked next door in the workshop.
Regards,
Graham.