Suits standard 90mm stroke engines.

This should work with standard length barrel, pushrods and studs.

This is a far better solution than trying to fit a BSA B50 piston.

We do not recommend going as big as 84mm on a B44 as it promotes potential problems and you use this piston at your own risk.

Forged piston with undercrown machining to reduce weight.

Piston dome has been designed to maintain compression ratio with reduced dome height, improving combustion quality.

No requirement to twin plug.

Compression ratio expected to be 10.5:1 – 11:1

Piston rings are designed to suit most plated bore types and traditional iron bores.