Set of 4 used Wossner pistons. They are 86.5mm diameter. They have been milled flat top to give a compression ratio of around 11.5:1 depending on your combustion chamber volume, mine was around 34cc from memory.

1 is from a different batch to the other 3 but have been weighed and they are all within a gram. Come with gudgeon pins and retaining clips. Rings are used but only done an initial rolling road session so should bed in again fine. I was running over size valves so the valve cut outs have been enlarged, and one isn't pretty but it's functional and works fine.

£300

I have 2 more available by separate negotiation.

________________________________________

Oulton Park in a BTCC 306 vid 1
Oulton Park in a BTCC 306 vid 2
Lap of the 'ring