Does This Debunk the "Coolant Can Flow Through the Radiator Too Fast" Idea???

I guess with a big radiator and really only the very top 1/2 to 1/3 of the cylinder and the head being cooled by the coolant there is less surface area of metal to shed heat energy into the coolant.

less exposure to hot metal lower temperature coolant..... that may be more effective at cooling the head... which is the bit that really counts

so does that mean grouting makes for cooler coolant?
or does grouting make for a cooler head but hotter cylinder block and piston, that we won't know about..... suppose if it doesn't cause a problem its not an issue

in a grouted block if the cylinder walls run hotter the piston will, harder to transfer heat from it via the rings to the cylinder wall if the wall is already hot, you'd expect a forged piston motor with some piston rock/slap when cold to exhibit much less of the behaviour or at least for a shorter time.

or did we just insulate/damp the noise.....! as per a sound proofed room....

all too complicated.

Dave