Re: Big bore

Posted by Anthony Pallett On 2013/5/13 9:56:04

As Owen noted on the valve to head clearance this is where an aluminum head comes in handy for the purposes of ease of machining and possible welding if need be. The interesting point is it seems from the picture that the thickness of the combustion chamber over the valve is thicker than the cylinder wall thickness.

A second note to this is machining a bit extra clearance above the valve though it will lover compression slightly will really help the flow potential of the engine.