hi guys,

I'm new to the site and looking at starting an st170 project, looking to stick with natural aspiration preferably although i realise supercharged and turbocharged engines give better hp gains for the same amount of money.

I've got an idea to increase the stroke of the engine to 2.3l, can anyone tell me the combustion chamber sizes for the 2.0 st170 and the 2.3 duratec engines?

I am open to any other ideas anyone wishes to suggest