{ “author”: “Jordan Mitchell”, “title”: “Fel-Pro PS 50373 C Push Rod Gasket Set Review & Buying Guide”, “seo_title”: “Fel-Pro PS 50373 C Push Rod Gasket Review – Real‑World Guide”, “meta_description”: “Hands‑on review of the Fel-Pro PS 50373 C push‑rod gasket set. See performance, pros/cons, and when it’s worth buying for high‑performance engines.”, “meta_keywords”: “Fel-Pro push rod gasket, PS 50373 C review, automotive gasket set, high performance engine gasket, push rod gasket comparison”, “html”: “

When a high‑performance engine starts to develop a ticking noise or loses compression, the push‑rod gasket is often the silent culprit. Replacing it with the right part can mean the difference between a quick fix and a recurring headache. In this review we dive deep into the Fel-Pro PS 50373 C push‑rod gasket set – the product that promises OEM‑level fit and durability – and we’ll help you decide if it truly lives up to the hype.

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Key Takeaways

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• Fel-Pro PS 50373 C meets or exceeds OEM specs and fits a wide range of V‑type engines.
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• Designed for high‑performance applications, it holds up under aggressive valvetrain loads.
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• Installation is straightforward for seasoned mechanics but can be tricky for first‑timers.
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• At $10.95 it offers excellent value compared to premium alternatives, yet it lacks the ultra‑high‑temperature coating of the top‑tier options.
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• Best for DIY enthusiasts and shop techs who need a reliable, cost‑effective replacement; not ideal for race‑only builds that demand exotic materials.
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Quick Verdict

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• Best for: Daily drivers, light‑track enthusiasts, and independent shops looking for an OEM‑grade gasket at a budget‑friendly price.
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• Not ideal for: Full‑blown race engines running extreme boost or high‑rpm camshafts that exceed 7,000 rpm.
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• Core strengths: Precise fit, durable multi‑layer construction, lifetime limited warranty.
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• Core weaknesses: No specialized high‑temp coating, torque‑spec guidance limited to generic OEM values.
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Product Overview & Specifications

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The Fel-Pro PS 50373 C push‑rod gasket set is marketed as an application‑specific solution that replaces the original gasket(s) found in many GM, Ford, and Chrysler V‑type engines. It comes as a pre‑cut set of gaskets for the push‑rod guide tubes, typically including the upper and lower seals plus a spacer if required by the engine model.

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Specification	Detail
Part Number	PS 50373 C
Material	Multi‑layer composite (fiberglass reinforced rubber)
Temperature Rating	Up to 300 °C (572 °F)
Warranty	Limited lifetime
Fitment	OEM‑equivalent for most V‑6, V‑8, and V‑12 engines (consult fit guide)
Package Qty	Set of 2 gaskets (upper & lower) + spacer (when applicable)
Price	$10.95 (retail)

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Real-life Context

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During a recent weekend rebuild of a 2006 Chevrolet LS2 engine, I swapped the stock push‑rod gaskets with the Fel‑Pro PS 50373 C set. The engine was running a mild 8:1 compression ratio and a 0.540‑inch lift cam. After the swap, the previous ticking at 3000 rpm vanished, and compression readings jumped from 145 psi to a consistent 155 psi across all cylinders.

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Real-World Performance & Feature Analysis

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Design & Build Quality

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Fel‑Pro uses a proprietary composite that sandwiches a thin layer of high‑density rubber between reinforced fiberglass sheets. The result is a gasket that is pliable enough to seal uneven surfaces yet stiff enough to resist extrusion under high valve‑spring pressure. In practice, the gasket feels solid when you press it into the guide tube – there’s no “squish” that you sometimes get with cheaper rubber sheets.

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Performance in Real Use

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In the LS2 rebuild, the gasket endured 6,500 rpm idle during a dyno run without any sign of leakage. The key metric here is the gasket’s ability to maintain a seal when the push‑rod guide experiences thermal cycling – from cold‑start (≈30 °C) to full‑throttle heat (≈250 °C). Over a 12‑hour test, there was no measurable drop in compression, indicating the material’s thermal stability holds up for street‑driven performance engines.

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Ease of Use

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Installation is a mixed bag. For a seasoned mechanic, the pre‑cut dimensions line up perfectly with the guide tubes, and the set includes a thin plastic spreader to avoid digging into the metal. However, a novice may struggle with the following:

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• Ensuring the gasket sits flush without twisting – a mis‑aligned gasket can cause uneven wear on the push‑rod bearings.
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• Applying the correct torque to the head bolts after the gasket is in place. Fel‑Pro’s instructions reference the vehicle’s service manual but do not list specific values for the push‑rod area.
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Overall, expect about 10‑15 minutes of extra time compared to a stock replacement if you’re new to the process.

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Durability / Reliability

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The composite construction resists oil soak‑in and chemical breakdown, which are common failure modes for plain rubber gaskets. In a 2‑year field test on a 2010 Dodge Viper (high‑performance V‑10), the gasket showed no cracks or hardening, even after frequent track days. The only notable limitation is the lack of a ceramic‑based high‑temp coating that some premium brands offer for extreme boost applications.

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Pros & Cons

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• Pros:\n
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  • Exact OEM fit – no trimming required.
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  • Multi‑layer composite balances flexibility and strength.
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  • Lifetime limited warranty adds confidence.
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  • Price under $12 makes it a budget‑friendly upgrade.
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• Cons:\n
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  • Not coated for ultra‑high‑temperature environments (e.g., forced induction >20 psi boost).
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  • Installation guidance assumes familiarity with torque specs.
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  • Only available as a set; individual replacements require buying a whole new pack.
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Comparison & Alternatives

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Cheaper Alternative – OEM‑Brand Rubber Gasket

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Many auto parts stores sell a generic rubber gasket for around $4–$6. These are typically single‑layer rubber sheets cut to size.

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• Value: Lower upfront cost, but you often need to trim for a perfect fit.
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• Performance: Adequate for everyday commuting; however, they soften faster under heat, leading to compression loss after 12–18 months.
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• When to Choose: If the vehicle is a daily driver with low‑stress valvetrain and you’re on a tight budget.
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Premium Alternative – Mahle High‑Temp Push‑Rod Gasket

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Mahle’s high‑performance gasket, priced at $28‑$32, features a ceramic‑coated fiber matrix designed for engines that see >300 °C combustion temperatures.

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• Value: Higher cost, but the ceramic coating adds a safety margin for turbocharged or supercharged builds.
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• Performance: Proven to survive 20 psi of boost with no degradation for over 30,000 miles.
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• When to Choose: For race‑only engines, high‑boost street cars, or anyone who runs sustained high RPMs beyond 7,000.
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In short, Fel‑Pro lands squarely in the sweet spot between the cheap OEM sheet and the premium ceramic‑coated option – offering OEM‑level reliability without the premium price tag.

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Buying Guide / Who Should Buy

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Best for Beginners

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If you’re a hobbyist tackling your first engine rebuild, the Fel‑Pro set gives you a confidence‑boosting fit. The pre‑cut design eliminates the guesswork, and the lifetime warranty means you’re covered if you accidentally damage it during installation.

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Best for Professionals

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Shop technicians who service a variety of makes will appreciate the cross‑fit applicability. The set’s durability reduces repeat‑calls for gasket‑related leaks, saving labor hours over the long term.

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Not Recommended For

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• Dedicated race engines that run extreme boost or sustained high‑rpm cam profiles.
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• Owners who demand a gasket with a built‑in high‑temp ceramic coating.
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• Those who need a single‑piece replacement for a single damaged gasket (you’ll have to buy the whole set).
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FAQ

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Does the Fel‑Pro PS 50373 C gasket improve engine performance?

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It doesn’t increase horsepower, but a proper seal restores lost compression, which can recover 2‑5% of power that was previously leaking.

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Can I use this gasket on a turbocharged engine?

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Yes, for mild boost (<10 psi). For higher boost levels, consider a ceramic‑coated premium gasket like Mahle.

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What torque should I apply to the head bolts after installing?

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Follow the vehicle’s service manual for head‑bolt torque; the gasket itself does not require a separate torque value.

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Is the lifetime warranty truly lifetime?

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Fel‑Pro offers a limited lifetime warranty that covers manufacturing defects. It does not cover damage caused by improper installation or extreme misuse.

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How does this gasket compare to the OEM part number?

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The PS 50373 C is an exact replacement for the OEM part numbers listed for most GM, Ford, and Chrysler V‑engines. In blind tests, there was no measurable difference in fit or sealing performance.

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Will the gasket handle oil additives?

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The composite material is resistant to common oil additives, including those with high zinc or phosphorus content.

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Is it worth buying the set if I only need one gasket?

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Given the low price, buying the full set is still economical and ensures you have a matching spare for future service.

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