Quench Vs Piston To Head Clearance
well that makes sense as if you "filled" the open chamber portions of the chamber you could basically mock a closed chamber head.
so all in all quench=piston to head clearance though they have different reasons for each number depending on rod material and piston/head design.
In a quench engine, piston to head clearance is the quench distance. According to the United Engine web site, for an engine not using aluminum rods, .035" is optimal quench distance. The easiest way, imo to set up quench is to zero deck the block to a given piston and use the head gasket to determine quench distance.
this assumes you have a chamber not like out slants correct? but would have to be like this?
That's how I have my 383 machined. I determined what my deck height needed to be for zero, got my machine shop to mill it there. now when I assemble it, all I need to do is choose a head gasket with the appropriate compressed thickness and go. Even though mine is a domed piston engine, it still has a quench pad and as long as I use a closed chamber head, I will have a quench dome engine. Though some say a quench dome engine is not as effective as a flat top quench, I have spoken with United Engine in depth about it and their dome design actually promotes quench. I didn't know that was possible, but if you look at the dome on the KB400, it kinda gives itself away.
well that makes sense as if you "filled" the open chamber portions of the chamber you could basically mock a closed chamber head.
so all in all quench=piston to head clearance though they have different reasons for each number depending on rod material and piston/head design.
