Genuine TSP Texas Speed & Performance Chromoly Pushrods, set of 16 7.400" Length 5/16" Diameter SAE 4130 Chromoly Hardened pushrods are a must for any valvetrain upgrade on your LS based engine. These TSP chromoly pushrods feature .080" wall thickness & are designed for stability under high rpm use. These one-piece pushrods are heat-treated and feature oil holes that are drilled and chamfered to prevent stress fractures and cracks. Fits: 4.8, 5.3, 6.0, 6.2L blocks LS1 LS2 LS3 LS4 LS6 LSA LQ4 LQ9 LM7 LC9 99-13 Trucks 98-13 Vettes 98-02 Camaro / Trans Am 04-06 CTS-V 09-13 CTS-V If you are building a custom valvetrain setup please measure for push rods before ordering. A large number of variables are involved in determining the correct length pushrod for your application. Pushrod length is affected by any of the following: Block deck height Head deck height Head stud boss height Rocker arm brand/design Cam base circle size Lifter design/brand/pushrod seat height Valve stem length Dont assume anything when determining the right pushrod for your new engine. A pushrod that fits one engine may not necessarily work in another. Any number of items can be different on your engine, requiring you to use a different pushrod length.