🏁 COF-21134 COF40 Costa Oil Racing Filter vs Fram PH5 – The Best Oil Filter for 602 & 604 Crate Engines
When it comes to protecting your 602 or 604 crate engine, choosing the right oil filter can make all the difference on race day. While many racers have relied on mainstream options like the Fram PH5, a new leader has emerged in the racing world — the COF-21134 COF40 Costa Oil Racing Filter.
Purpose-built for high-performance crate engines, the COF40 delivers superior oil flow, filtration, and durability, making it the go-to choice for serious competitors. In this article, we’ll break down why the COF40 is the ultimate oil filter for your racing setup and how it stacks up against the well-known Fram PH5.
🔧 Why the COF-21134 COF40 is the Best Oil Filter for Crate Engines
The COF40 wasn’t designed for everyday driving — it was engineered for racing. Whether you’re pushing your engine in a dirt track late model or a street stock, this filter is built to withstand extreme temperatures, high RPMs, and demanding conditions.
Key Benefits:
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✅ High Flow Rate – Designed to maintain oil pressure even at wide-open throttle
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✅ Race-Specific Filtration – Captures fine particles and racing debris
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✅ Heavy-Duty Construction – High burst strength and solid internals
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✅ Optimized Bypass Valve – Prevents unfiltered oil from circulating during pressure spikes
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✅ Built for 602 & 604 Engines – Perfect fit and performance for GM crate motors
🔥 COF40 vs Fram PH5 – Comparison Chart
| Feature | COF-21134 COF40 (Costa Oil Racing) | Fram PH5 |
|---|---|---|
| Designed for Racing | ✅ Yes – Engineered for 602/604 crate engines | ❌ No – Designed for general automotive use |
| Oil Flow Rate | 🔥 High-flow design, consistent pressure | ⚠️ Moderate – Can restrict flow under load |
| Filtration Efficiency | ✅ Built to capture racing debris | ❌ Standard filtration for passenger cars |
| Bypass Valve Setting | ⚙️ Tuned for high-performance engines | ⚙️ Basic bypass setting |
| Build Quality | 💪 Reinforced for racing conditions | 🧻 Lighter-duty construction |
| Burst Strength | 💣 High burst pressure – race tested | ❌ Lower tolerance |
| Fit for Crate Engines | ✅ Yes – Perfect match | ❌ Not ideal for crate engines |
| Racer Approved | 🏆 Trusted by crate engine builders | 🚫 Rarely used in competitive racing |
| Made in the USA | 🇺🇸 Yes | 🚫 Often manufactured overseas |
| Price-to-Performance Ratio | 💯 Excellent value | 💸 Lower price, but lower performance |
🛢️ What Makes the COF40 Better than the Fram PH5?
The Fram PH5 may be a familiar name, but it simply wasn’t designed for the demands of modern crate racing. While it works for basic applications, the PH5 lacks the high-flow design, filtration quality, and build strength needed for sustained high RPMs and extreme temperatures.
In contrast, the COF-21134 COF40 was purpose-built for performance. It gives racers peace of mind knowing their engine is protected by a filter that won’t collapse, clog, or rob horsepower due to poor flow. And when every second counts, that’s a game-changer. 🏎️💨
👊 Why Racers Choose Costa Oil Racing Filters
Costa Oil Racing is known for quality, innovation, and real-world testing. Racers across the country are making the switch because they’ve seen the difference the COF40 makes in reliability and power.
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💪 Trusted by engine builders
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🏁 Proven performance on dirt and asphalt tracks
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🇺🇸 Proudly made in the USA
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🛠️ Backed by Costa Oil’s commitment to racing excellence
🏆 Final Thoughts: COF-21134 COF40 is the Oil Filter Your Crate Engine Deserves
If you’re running a GM 602 or 604 crate engine, don’t take chances with a basic filter. Upgrade to the COF-21134 COF40 Costa Oil Racing Filter and experience the performance, protection, and peace of mind that only a true racing filter can deliver.
Stop using street filters for race cars. Race smart. Race Costa. 🏁
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