Breakthrough Button Designs for Pro Mod, Big Turbos and Top Ring Placement Advice.

A Denver racing piston specialist has just announced unique piston pin retention buttons. Its latest design for pro Mod and big turbo racing engines incorporates a radial locking feature. The advent of the piston button and its subsequent popularity came about because of the convenience it offers. Changing pistons with buttons not only reduces the time taken to replace pistons at the race track, but it also ends the frustration of fiddling about with round wire locks or double spiral versions.
“Some years ago, when we were developing the original concept,” says Gibtec Piston’s Robbie Giebas, “the button seemed to offer a further advantage…Read the full story courtesy of Drag Racer magazine.