There is an online calculator to find compression ratios here:
http://www.campbellenterprises.com/Race%20math%20calculators.htm#Compression%20ratio%20calculator
Give that a try. Standard bore 4.320 and the standard stroke is 3.750. Deck height is 10.725. You are going to have to figure out what the gasket thickness is and what the head volume is (in CC's) and what the pistons are.
Hope this helps.
http://www.campbellenterprises.com/Race%20math%20calculators.htm#Compression%20ratio%20calculator
Give that a try. Standard bore 4.320 and the standard stroke is 3.750. Deck height is 10.725. You are going to have to figure out what the gasket thickness is and what the head volume is (in CC's) and what the pistons are.
Hope this helps.