Manley 25737-16 pushrods, 1010 steel, heat-treated, 5/16 in. Diameter, 7. 794 in. Length, ball ends, universal, set of 16. These MANLEY pushrods are the perfect complement to your Hot street, bracket, oval track, or any other high performance engine. Theyre an affordable way to combat higher spring pressures and the other stresses associated with high performance engines. Specifications: for use with guide plates: yes pushrod tube diameter: 5/16 in. Pushrod material: steel top tip style: ball bottom tip style: ball overall length: 7. 794 in. One piece pushrod: no tip attachment: welded tip diameter: 5/16 in. Wall Thickness: 0. 080 in. Heat treated: yes popular applications: small block Chevy, flat tappet, stock length.