Our Chromoly Push Rods are manufactured from select hard drawn seamless 4130 Condition N 3/8" tubing. Each Push Rod is stressed relieved for maximum performance. The push rod tips are CNC machined from high carbon steel and heat treated to 60 rockwell. The design of the tip is suitable for valve seat pressures to 200 psi and valve lift to over .700". Chromoly Push Rods are available to fit stock 13, 15 and 1600cc applications and are also available in blank end condition. Blank end push rods are extra long and enable the builder to cut and assemble them to exact requirements. Manufactured by Manton.