Michigan Motorsports 7.400" Chromoly LS Pushrods — Stock Length 5/16" | 4130 Steel, OEM-Fit Durability

Michigan Motorsports 7.400" chromoly pushrods are heavy-duty, 4130-steel pushrods engineered to replace or upgrade stock valvetrain parts on a wide range of LS engines.

Built for enthusiasts and engine builders who want a reliable, OEM-fit pushrod that can handle increased RPM and valvetrain stress, these pushrods combine a common stock length with premium chromoly construction. They fit many GM LS-family engines and are precision-machined to tight tolerances so the valvetrain maintains consistent operation whether used in daily drivers, performance street cars, or race applications.

Which LS engines will these 7.400" pushrods fit?

These pushrods are specified at a stock length of 7.400" and a 5/16" diameter, matching the factory sizing used across numerous LS-series V8s. They are intended as direct-fit replacements for many common GM engines without the need for additional modification.

• Compatible with LS1, LS2, LS3, LS4, and LS6 platforms
• Fits later platforms including L76, L92, L99 and L33
• Works with heavy-duty blocks like LQ4 and LQ9 and supercharged LSA applications (verify specific valvetrain clearances)

How are these pushrods manufactured and why does that matter?

Michigan Motorsports machines these pushrods from 4130 chromoly steel, a material known for high tensile strength and resistance to bending under load. The result is a more rigid link between lifter and rocker, which helps maintain accurate valve motion at higher RPM and under heavy spring pressure.

• 4130 chromoly construction for superior rigidity and fatigue resistance
• Precision-machined ends to ensure consistent seating and alignment
• Tight manufacturing tolerances for predictable valvetrain geometry

Are these pushrods suitable for performance builds or only stock replacements?

They are designed to serve both roles. For stock-replacement needs they restore original valvetrain geometry and durability; for mild to moderate performance upgrades they provide extra strength where factory pushrods may flex. For extreme high-lift or competition-level builds, check spring pressures and valvetrain specs to confirm compatibility.

• Ideal for street performance, weekend track use, and towing/heavy-duty applications
• Works with OEM and many aftermarket rocker/lifter combinations (confirm clearance)
• Not a substitute for specialized pushrods specified by race engine builders when extreme spring pressures or length modifications are required

What installation and verification steps should I follow?

Installation follows standard pushrod replacement practice: confirm engine is at TDC on compression for the cylinder being adjusted, swap pushrods one at a time to retain lifter oiling, and verify valve lash or hydraulic preload per the cam and lifter type. After installation, run the engine and recheck clearances.

• Replace one pushrod at a time to keep lifters properly oiled
• Verify pushrod length, valve lash, and lifter preload per engine specs
• Perform a post-installation recheck after initial run-in

Who this is for: The Michigan Motorsports 7.400" chromoly pushrods suit car owners, mechanics, and builders who need a strong, accurately made pushrod for GM LS engines. Choose these when you want a durable OEM-length replacement that resists flex under higher RPM and provides reliable valvetrain performance for street, sport, or light competition use. If your project demands custom lengths or extreme competition valvetrain components, consult a builder or measure your valvetrain geometry before ordering.