Heat-treated .065 wall thickness 4130 chrome moly, for use with guide plates. 25% thicker walls than a major competitor's brand. Gloss black finish. Premium one-piece pushrods for the price of competitors 3-piece! Each end is precision formed with specified radius for optimum wear characteristics with minimal metal-to-metal friction. 16 pieces per package. Product Features:Fits Ford 429 Super CJ70 Engine5/16-in. DiameterMade from Quality 4130 Chrome Moly Material with a .065 Wall ThicknessStock Length Of 8.700-in. esfor Use with Guide Plates