What cubic inch is a motor using 350 block bored .40 over,327 crack,6 inch rods?
333 Cubic inches The stock 350 has a 4.00 inch bore The 327 had a 3.250 inch stroke Bore would be 4.040 inches Stroke would be 3.250 inches The rod size or cylinder head combustion chamber size makes no difference in calculating engine displacement. Formula: Pi (3.1416) times r² (radius is 1/2 the actual bore size) times stroke times 8 cylinders Be aware that there were some changes made to the small block Chevy over the years. In 1968, the main journal diameter was increased to 2.45 inches from 2.30 inches and the connecting rod journal diameter was increased to 2.10 inches from 2.00 inches. So you may have problems fitting a 327 crank shaft into a 350.
