CHEVROLET LS V8. 7.400? overall length. 5/16? diameter. 0.080? Wall thickness. Set of 16. Made in USA. One piece performance pushrods made from 4130 seamless chromoly steel tube and heat treated to a surface hardness of 60HRC. Length variation within 0.005?. Die formed tip radius of 0.156? 210° around for extra clearance to lifter/rocker on higher lift applications.