There really isn't a specific compression height on the pistons I offer. What I do is have pistons made for your build. After the engineering costs we only need to stay within a few perameters. I currently offer a -17cc dish and a flattop for the 4.125". We can adjust for rod length, deck height, bore size, ect. So, it's like getting a custom piston without all of the costs associated with it. We are currently working on the 4.250" stroke combo's.

Rod