Apologies for this not being M20, but I've been asked to find some G14 +20 pistons and as there was WD usage was hoping someone here would either know where to get some or maybe have found an alternative?

Many thanks,

Tony

email (option): alcyonuk@googlemail.com

Hi Tony..A common fitment to G14s (bearing in mind that they aren't that common!!) was Vauxhall pistons..when I had mine I met at least two owners who had used these. I never had to do it as I had original pistons but I would imagine a 70s/80s model would be the most likely candidate.
Can you post the critical dimensions of the G14 piston?..gudgeon pin diameter, pin centerline to crown hieght, bore size and overall length. I have an old AE catalogue, I might be able to find something.
Alternatively try Cox and Turner..they specialise in finding oddballs or suitable substitutes.
You can google them or Ron Pier will be able tp provide a contact number....Ian

email (option): ian@wright52.plus.com