26-09-2019, 08:13 AM
When I put my car back on the road in 1999 without having removed the head - it had been laid-up for 20 years - the local PWA7C club president Vic Wilde lent me a set of these - he called them plug extenders. This allowed the engine to run well enough for the first few hundred miles without oiling up the plugs. They have not been needed since.
Colin
Colin