Simple Math Question.
Simple Math Question. Going from a 0.040" thickness head gasket to a 0.054" thickness head gasket will increase the combustion chamber size by about 2.745cc. Is that correct?
This is on a 3.903" bore.
Formula for volume of a cylinder is: pi(r)^2(h)
So r = 1.9515"
h = 0.054" - 0.040" = 0.014"
So we have pi(1.9515")^2 * (0.014") = 0.1675 ci
Conversion to cc
1L = 61.02 ci
So 0.1675ci = 2.745cc?
This is on a 3.903" bore.
Formula for volume of a cylinder is: pi(r)^2(h)
So r = 1.9515"
h = 0.054" - 0.040" = 0.014"
So we have pi(1.9515")^2 * (0.014") = 0.1675 ci
Conversion to cc
1L = 61.02 ci
So 0.1675ci = 2.745cc?
Originally Posted by MSURacing
well, you did the math right, but you need to figure out the diameter of the gasket, not the cylinder bore. The gasket bore diameter is probably closer to 3.940 or so.
Taking it a step further and accounting for 0.030" milling.
On paper, milling 0.030" reduces combustion chamber size by ~5.88cc.
It then follows that a 66cc head with milling 0.030" and installing it with a 0.040" gasket brings the combustion chamber down to ~57.32cc. (8.68cc reduction)
