Originally Posted by Christian and Beccy
What make was the gasket that was fitted??
I use an OE gasket at 2 Bar of boost and 300bhp.

It is a Burton Power Gasket
Originally Posted by turboboss
head bolts not tighten properly block not cleaned i had a head gasket go after 3 miles but that was due to me buying a cheap gasket £12 from my local motor factors
I torqued the head down to the haynes manual specs.
Originally Posted by Christian and Beccy
Also, if the Correct tightening sequence for the Head Bolts wasn't followed, this could have been the problem. Also, were new Head Bolts used? Were the thick washers fitted under the Head Bolts? The list goes on!!
I used the haynes manual bolt tightening sequence, i also used new head bolts with the washers off the old set.
Thanks for all the help, it's still really baffling tho.