Manton's Series 3 Pushrods, Chromoly, 5/16 diameter x .083 wall, Custom Length, select tips
Yes—a properly selected pushrod upgrade can improve valvetrain stability, durability, and the engine’s ability to follow its intended valve motion. Whether it adds measurable horsepower depends on how well the existing pushrods handle the application.
At Manton, we look at pushrods as part of the entire valvetrain. A hot rod, a diesel rebuild, and a competition engine may need very different pushrods, but the goal is the same: transmit motion accurately and survive the operating conditions.
The benefit might be recovering lift lost to deflection, maintaining control at higher RPM, improving tip wear, or helping expensive surrounding components last longer. A horsepower number alone does not tell the whole story.
Mid to High Performance
Used for multiple applications such as Sportsman, Marine, LS and Factory Performance engines
Provides approximately 170,000 psi tensile strength
Hard Drawn 4130/4135 seamless chromoly tubing, the highest quality available from mills. Originally formulated for aerospace/aircraft use
Shaft or pedestal style rockerarms should be used in conjunction with this series of pushrod because we do not case harden the tube for guide plate us
Only the most common pushrod selections listed, if you do not see the pushrod to accommodate your needs click here, for our custom pushrod form. To see all available pushrod tips click here, Or contact us directly at 951-245-6565
Series 1 (Up to 250 HP)
Application: Small engines with low valve spring pressure, i.e. carts to Volkswagen
Specs: 140,000 psi tensile strength (4130/4135 chromoly).
Notes: Not recommended for hardened guide plates or roller cams.
Series 2 (Guide Plate Compatible)
Application: Factory Performance Upgrade CNC turned, surface heat treated 1 piece pushrods.
Specs: ~170,000 psi tensile strength (aerospace-grade hard-drawn seamless 4130/4135 chromoly).
Notes: Compatible with guide plates or shaft mount setups.
Series 3
Application: Low to medium spring pressure including flat tappet and hydraulic roller engines
Specs: 170,000 psi tensile strength (aerospace-grade hard-drawn seamless 4130/4135 chromoly).
Notes: Requires shaft or pedestal style rocker arms (not for guide plate use).
Series 4 (Guide Plate Compatible)
Application: Pushrods are engineered for mid- to high-performance engines. Requires matched-size pushrod guide plates to maintain proper valvetrain alignment.
Specs: ~180,000 psi tensile strength (aerospace-grade hard-drawn seamless 4130/4135 chromoly).
Notes: Melonite™ processed for superior wear resistance and durability.
Series 5
Application: High Performance solid roller applications & hydraulic roller setups with power adders / extreme RPM demands.
Power Adders: Blown, Turbo charged, Pro charged, Alcohol and Nitrous.
Specs: 275,000 psi tensile strength via proprietary heat-treated 4130/4135 chromoly.
Notes: Hand-crafted with custom tip options; requires shaft or pedestal rockers.