have you got details on the head work you had done? I think you had copper rings inset into the head? pros/cons and costs :)

 

cheers matey

Hi Mike, yep had the block/head coper ringed about 2 1/2 years ago now, cost was about 225 quid to machine block and insert rings, RC Developments used a company local to them in Warrington to do the job, though any decent block specialist can do it. Copper rings bite into the stock gasket to help prevent movement, blowing and correct seal.

Pros, well it's a tried and tested/approved method used for years in particular the rally world, helps prevent head gasket failure for what ever reason, is reputed to be the best total seal system for heads, used with stock gaskets, cons, well i know of none mate and certainly none proved on my Zed running 18psi in the time it's been fitted, got a pic or 2 somewhere and may did it out, though al yer see is some copper rings around the piston bores, lol

cheers

smithy