400/450 stroker....Cheap parts, lotta work.

... This is the test rod of know length, 6.356". I had the press fit pin end honed so the pin will slip in/out and I can test the machined crank (standard 400 mains and .020" under rods) for stroke length on each throw. Any piston I want to use will just slip on and off.

I have one of those plus others for different engines.