performance modification · FF-0140

Can a French Flathead block take an Ardun overhead-valve conversion?

Probably not. Steve says the block has a factory relief, more sophisticated than Ford's and apparently machined, and an overhead-valve conversion such as the Ardun needs that deck area flat for the head gasket to seal.

Expert

Steve Coppock

Evidence

expert attributed

Component

factory relief and deck surface

Applicable scope

French Ford/Simca Flathead block with factory relief