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nkaminar · 04-19-2021, 09:31 PM

My experience in milling a head for more compression is on a stock "low" head for a Model T. about 5/8 inch was removed. It worked great. I don't know what the resulting compression ratio was. So, has anyone milled a stock A head to gain compression ratio? I suspect the area above the piston would have to be relieved to clear the piston.

BTW, the milling on the T head went into the water jacket but it was blocked by the head gasket.

Just as important as the higher compression ratio is the combustion chamber design. Does the design promote turbulence? Does it relieve the valve area for better flow?

04-19-2021, 09:31 PM	#9
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 3,897	Re: Milling Snyder 6.0 Head My experience in milling a head for more compression is on a stock "low" head for a Model T. about 5/8 inch was removed. It worked great. I don't know what the resulting compression ratio was. So, has anyone milled a stock A head to gain compression ratio? I suspect the area above the piston would have to be relieved to clear the piston. BTW, the milling on the T head went into the water jacket but it was blocked by the head gasket. Just as important as the higher compression ratio is the combustion chamber design. Does the design promote turbulence? Does it relieve the valve area for better flow? __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. Last edited by nkaminar; 04-19-2021 at 09:55 PM.