One piece construction 4130 chromoly steel tubing.  Our pushrods are engineered to fit Chevrolet Gen III IV 4.8 5.3 5.7 6.0 6.2 LS1 LS2 LS3 LS4 LS6 L76 L92 L99 LQ4 LQ9 L33 LSA engines.

Diameter:  5/16"

Wall Thickness: .080"

Material: 4130 steel