H beam vs I beam, I have been building racing engines of all type for some years now. What I have seen as the cause of rod deflection are 1: elongation ,occurs when the revs are sustained at high numbers. this is evidenced by carefull claying of the piston and dry assembly then cranking engine...
I used to use the tensioner pad out of a 4 spd evo sportster when we did 883 racing.Professional Plastics sell nylon 66 in sheet stock if you were going to make several.
Dman # 93
