3?? Cu Inch

Unknown

This May Sound Like A Stupid Question To Some But, My 308 Has Been Bored .040 Over. I Was Wondering What Is The Displacement Now, And If You Can Tell Me How To Figure That Out Myself I Would Appreciate It Thanks. -john

[Deleted User]

pi times r squared times h times stroke times 6.



pi = 3.1416



Take the orginal bore size and add .040 to it. Divide the result by 2 to get the radius. Square the answer. multiply times pi. Multiply the answer times the stroke (h). Multiply times 6 (for the number of cylinders. Should give you the new displacement.



If I knew the original bore and stroke I could figure it for you.

Unknown

Thank You. The Original Bore And Stroke Are 3 13/16 X 4 1/2 ( 3.8125 X 4.5) So If I Did My Math Correctly My New Displacement Is 314. 73 Cu In. Nice Formula To Know. Thanks Again. -john

frank spring

Now, you have to have a new head made with 314 stamped on the top.