COMP Cams Fuel Pump Push Rod

Why Your Roller Cam Build Needs the Right Fuel Pump Push Rod

Upgrading to a performance camshaft is one of the most impactful modifications you can make to a classic V8 engine — but it can introduce a compatibility problem that many builders overlook. Fuel pump push rods are a small but critical link in the mechanical fuel delivery system, and when you pair a high-pressure mechanical fuel pump with a steel roller camshaft, the stock push rod simply isn't up to the task. The hardened steel of a roller cam core is incompatible with the softer tip of an OEM-style push rod, leading to accelerated wear at the fuel pump lobe — potentially damaging an expensive camshaft before it ever sees full power.

COMP Cams recognized this problem and engineered a purpose-built solution. As the self-described problem-solvers of the valvetrain world, COMP Cams offers a focused lineup of fuel pump push rods specifically designed to protect your cam investment while maintaining reliable fuel delivery across a range of classic American engine platforms.

COMP Cams Fuel Pump Push Rod Product Line

The COMP Cams fuel pump push rod lineup covers several popular domestic engine families, with material and tip configurations matched precisely to the camshaft type in use. Key options in the lineup include:

• DLC-Coated Chromoly Steel (Part #4610): A 5.75" chromoly steel push rod featuring a Diamond-Like Carbon (DLC) coated tip for Small-Block and Big-Block Chevy applications. DLC coating provides exceptional hardness and lubricity, making it ideal for high-pressure fuel pump setups.
• Lightweight Tubing with Bronze Tip (Part #4607): A heat-treated tubular chromoly steel push rod with a bronze tip engineered to run against steel roller camshafts. The bronze tip material provides a compatible wear interface that protects the cam lobe over the long term.
• Lightweight Tubing with Steel Tip (Part #4616): Designed for use with cast iron flat tappet camshafts, this lightweight tubular construction reduces reciprocating mass while maintaining durability.
• Oldsmobile Rocket Block with Bronze Tip (Part #4620): Application-specific fitment for Oldsmobile Rocket block engines paired with steel cams.
• Chrysler HEMI Options (Parts #4646CPG & #4626): Dedicated push rods for Big Block Chrysler and HEMI engines, available with both bronze and steel tips to match your specific camshaft material.

Engineering Quality You Can Trust

COMP Cams has built its reputation as the absolute leader in valvetrain technology since its founding in 1976. Every product in the lineup is the result of serious engineering investment — the company developed proprietary processes like Pro Plasma Nitriding and Micro Surface Enhancement (MSE) to push the boundaries of surface hardness and component longevity across their entire catalog. That same engineering discipline carries through to even the smallest components, including fuel pump push rods.

Whether you are running a street rod with a mild hydraulic roller cam or a dedicated race engine with a steel billet core, selecting the correct tip material and construction is essential. COMP Cams makes that selection straightforward with clearly application-matched parts that take the guesswork out of the build. Browse the full selection of COMP Cams Fuel Pump Push Rods to find the right fit for your engine combination.