Valvetrain

2010-2018 Dodge Ram 2500 & 3500 6.7L Cummins Performance Valvetrain, Springs & Pushrods

Prevent catastrophic valve-to-piston contact, eliminate performance-robbing valvetrain flex, and bulletproof your engine's upper architecture with premium 2010–2018 6.7L Cummins 4th Gen valvetrain components from Full Force Diesel. When managing the immense torque profiles and elevated boost pressures of a tuned or heavily worked 4th Generation Ram HD truck, the factory valvetrain becomes a major weak link. Elevated exhaust backpressure (drive pressure) and high engine RPMs can easily overcome the factory components, leading to lost power or severe internal damage. Upgrading to engineered aftermarket valvetrain hardware ensures precise valve timing and total mechanical stability under extreme operational stress.

Securing the Valves: Heavy-Duty Valve Springs & Retainers

Controlling valve motion is critical when pushing your common-rail platform past factory performance parameters:

• Eliminating Valve Float and Blow-Open: The factory valve springs are relatively soft, engineered only to handle stock boost and drive pressures. When an aftermarket turbocharger or aggressive tuning spikes exhaust backpressure, that force can physically blow the exhaust valves open when they should be closed, or cause the valves to "float" at higher RPMs. Upgrading to heavy-duty chrome-silicon alloy valve springs provides the necessary seat pressure to snap the valves shut securely, ensuring crisp combustion sealing and preventing destructive valve-to-piston contact.

• Lightweight Titanium and Tool Steel Retainers: To complement stiffer springs, upgrading the surrounding hardware is essential. Premium valvetrain kits utilize precision-machined titanium or tool steel valve spring retainers and hardened keepers. These materials dramatically reduce rotating mass at the top of the valve stem, allowing the valvetrain to react faster and remain stable across the entire RPM band.

Rigid Force Transmission: Heavy-Wall Pushrods & Rocker Upgrades

Transferring the mechanical lift from the camshaft up to the cylinder head requires components that will not deflect under immense structural loads:

• Chromoly Heavy-Wall Pushrods: Factory pushrods are thin and notoriously flexible. Under the strain of stiffer aftermarket valve springs and high cylinder pressures, the stock pushrods will physically bow and flex like toothpicks. This flex shortchanges your valve lift, robs the engine of horsepower, and can eventually lead to a bent or broken pushrod dropping into the oil pan. Upgrading to seamless, one-piece chromoly pushrods with thick wall dimensions ensures unyielding rigidity, transmitting 100% of the camshaft's profile directly to the rocker arms.

• Performance Rocker Arm Assemblies and Bridges: The rocker arms bear the brunt of the mechanical leverage inside the cylinder head. Upgrading to heavy-duty rocker arm assemblies featuring reinforced bridges and improved lubrication channels prevents premature trunnion bearing wear and eliminates tip geometry distortions. Additionally, integrating performance mechanical lifters and custom-ground camshafts allows you to optimize duration and lift characteristics, widening your truck’s power band and improving overall thermal efficiency.

At Full Force Diesel, we provide the machine-shop-certified engine internals and heavy-duty valvetrain upgrades your 4th Gen inline-six needs to remain completely dependable at any power level. Explore our complete selection of 2010–2018 6.7L Cummins 4th Gen performance valve springs, heavy-wall chromoly pushrods, billet rocker bridges, and performance camshaft upgrades above to secure your engine's top-end integrity today.