Compression Ratio Calculation
Figuring the static compression is something you do before you assemble your engine. The calculations such as bore, stroke cylinder head volume, effective dome volume, deck clearance, and compressed gasket thickness. If it is a stock 350 you know 4.00 x 3.48, cylinder head volume has to be measured for cc's, effective dome volume-the piston manufacturer list this. Deck clearance is the measurement from the top of the piston to top of block. Examp. dished 12.5cc, flat top w/ two eyebrows 7cc, dome piston -20cc, compressed gasket thickness the manufacturer list this. There is no way to know with the engine assembled.