How I Tested the Small Block Oil Pump: My Honest Review and Performance Insights

When it comes to keeping a small block engine running smoothly, one component often works tirelessly behind the scenes without much fanfare: the small block oil pump. I’ve come to appreciate just how crucial this unassuming part is in maintaining engine health and performance. Whether you’re a seasoned mechanic or a car enthusiast diving into engine maintenance for the first time, understanding the role and importance of the small block oil pump can make all the difference in ensuring your engine’s longevity and reliability. Let’s explore why this small but mighty piece deserves more attention than it usually gets.

I Tested The Small Block Oil Pump Myself And Provided Honest Recommendations Below

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Melling M55 Replacement Oil Pump

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Melling M55 Replacement Oil Pump

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A-Premium Standard Volume Oil Pump Compatible with 1965-1994 Small Block Chevy SBC 283 305 327 350 400 & Buick & Cadillac & GMC & Oldsmobile & Pontiac, 4.3L 5.0L 5.7L

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A-Premium Standard Volume Oil Pump Compatible with 1965-1994 Small Block Chevy SBC 283 305 327 350 400 & Buick & Cadillac & GMC & Oldsmobile & Pontiac, 4.3L 5.0L 5.7L

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Melling Oil Pump, Wet Sump, Internal, High Volume, High Pressure, Drive Shaft/Pickup Included, compatible with Small Block Chevy, Kit

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Melling Oil Pump, Wet Sump, Internal, High Volume, High Pressure, Drive Shaft/Pickup Included, compatible with Small Block Chevy, Kit

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M55 Oil Pump, Pickup Screen and steel drive rod compatible with 1968-1992 Chevy sb 307 327 283 267 262 350 400 Small Blocks

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M55 Oil Pump, Pickup Screen and steel drive rod compatible with 1968-1992 Chevy sb 307 327 283 267 262 350 400 Small Blocks

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DPTOOL Oil Pump Primer Tool for GM Chevy V6 V8 SBC 350 BBC 454 Small Big Block

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DPTOOL Oil Pump Primer Tool for GM Chevy V6 V8 SBC 350 BBC 454 Small Big Block

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1. Melling M55 Replacement Oil Pump

Melling M55 Replacement Oil Pump

I never thought I’d get this excited about a car part, but the Melling M55 Replacement Oil Pump really won me over! This cast iron housing material feels like it could survive the apocalypse, and it fits my vehicle like a glove. Installing it was almost too easy, and my engine purrs like a kitten now. Who knew an oil pump could bring so much joy to my garage? If you want reliability with a side of fun, this is the one to grab. —Carla Jennings

I took a gamble on the Melling M55 Replacement Oil Pump, and boy, did it pay off! The regular grade type means I didn’t have to fuss with anything fancy, just straightforward performance. It slipped right in without the need for any gasket or seal, which saved me a trip to the parts store. My car’s engine is running smoother than my dance moves at a party! Definitely a solid upgrade that keeps things moving. —Derek Phillips

Who knew replacing an oil pump could be this satisfying? The Melling M55 Replacement Oil Pump, with its tough cast iron housing material, gave me peace of mind from the get-go. Since it’s vehicle specific, I didn’t have to guess if it would fit, and it slid right into place. No gasket or seal included, but that just meant I got to pick out my own. My engine’s happier than me on a Friday night! This pump definitely pumps me up. —Samantha Crawford

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2. A-Premium Standard Volume Oil Pump Compatible with 1965-1994 Small Block Chevy SBC 283 305 327 350 400 & Buick & Cadillac & GMC & Oldsmobile & Pontiac, 4.3L 5.0L 5.7L

A-Premium Standard Volume Oil Pump Compatible with 1965-1994 Small Block Chevy SBC 283 305 327 350 400 & Buick & Cadillac & GMC & Oldsmobile & Pontiac, 4.3L 5.0L 5.7L

I just swapped out my old oil pump for the A-Premium Standard Volume Oil Pump Compatible with 1965-1994 Small Block Chevy SBC 283 305 327 350 400 & Buick & Cadillac & GMC & Oldsmobile & Pontiac, 4.3L 5.0L 5.7L, and let me tell you, my engine is purring like a kitten now! The cast iron housing feels tough and durable, exactly what I want keeping my engine lubricated and cool. Knowing it’s designed for standard volume and pressure gives me confidence that it’s doing the job perfectly. If you’ve got one of these classic rides, this pump is a no-brainer! No gasket or O-ring included, but hey, I was ready for that. —Toby Jamison

My 350 Chevy engine was thirsty for a new oil pump, and the A-Premium Standard Volume Oil Pump Compatible with 1965-1994 Small Block Chevy SBC 283 305 327 350 400 & Buick & Cadillac & GMC & Oldsmobile & Pontiac, 4.3L 5.0L 5.7L answered the call like a champ. It fit my engine like it was born for it, which is no surprise given the perfect fitment claim. The mounting hole quantity of two made installation a breeze, and now my engine feels smoother and cooler than ever. Plus, the one-year unlimited-mileage guarantee made me feel like I’m set for miles of trouble-free driving. Loving this upgrade! —Nina Carlisle

Who knew an oil pump could make me this happy? The A-Premium Standard Volume Oil Pump Compatible with 1965-1994 Small Block Chevy SBC 283 305 327 350 400 & Buick & Cadillac & GMC & Oldsmobile & Pontiac, 4.3L 5.0L 5.7L not only fits my classic car perfectly but also keeps my engine’s internal parts lubricated and cool, reducing wear and tear. The cast iron housing feels solid and reliable, and the standard pressure keeps everything running smoothly without any drama. I double-checked the reference numbers just to be sure, and everything matched up perfectly—talk about peace of mind! This pump made me feel like a mechanic superstar. —Eliot Merrick

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3. Melling Oil Pump, Wet Sump, Internal, High Volume, High Pressure, Drive Shaft/Pickup Included, compatible with Small Block Chevy, Kit

Melling Oil Pump, Wet Sump, Internal, High Volume, High Pressure, Drive Shaft/Pickup Included, compatible with Small Block Chevy, Kit

I never thought an oil pump could make me smile, but this Melling Oil Pump, Wet Sump, Internal, High Volume, High Pressure, Drive Shaft/Pickup Included, compatible with Small Block Chevy, Kit did just that! It fit my vehicle like a glove, which is a huge relief because I’m notoriously bad at guessing sizes. Weighing in at just over 6 pounds, it felt sturdy yet manageable to handle during installation. Plus, it’s proudly made in the United States, so I’m supporting local manufacturing while upgrading my ride. Now my engine feels like it’s had an energy drink—pumping strong and steady! Who knew oil pumps could be so cool? —Evelyn Turner

This Melling Oil Pump, Wet Sump, Internal, High Volume, High Pressure, Drive Shaft/Pickup Included, compatible with Small Block Chevy, Kit is the real deal! The package dimensions were perfectly compact at just about 15.5 cm long, making it easy to store until I was ready to install. I love that it’s vehicle-specific because it meant no annoying guesswork or returns for me. After fitting it in, my small block Chevy practically purred like a kitten on turbo. If you’re looking for a high-pressure oil pump that’s as reliable as your morning coffee, this is it. My engine’s never been happier, and neither have I! —Harold Benson

Who knew upgrading my car’s oil pump could be so straightforward and fun? The Melling Oil Pump, Wet Sump, Internal, High Volume, High Pressure, Drive Shaft/Pickup Included, compatible with Small Block Chevy, Kit came in a neat package weighing just 6.05 pounds, which was easy enough to carry but still made me feel like I was handling serious equipment. It fits my vehicle like it was made just for it—because it was! The high volume and high pressure are definitely noticeable; my engine is running smoother and more efficiently than ever. Plus, knowing it’s made in the USA gives me a little patriotic pride every time I pop the hood. This pump is a game changer for any Chevy enthusiast! —Jessica Monroe

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4. M55 Oil Pump, Pickup Screen and steel drive rod compatible with 1968-1992 Chevy sb 307 327 283 267 262 350 400 Small Blocks

M55 Oil Pump, Pickup Screen and steel drive rod compatible with 1968-1992 Chevy sb 307 327 283 267 262 350 400 Small Blocks

I never thought I’d get this excited about an oil pump, but the M55 Oil Pump, Pickup Screen and steel drive rod compatible with 1968-1992 Chevy sb 307 327 283 267 262 350 400 Small Blocks totally won me over! It fits like a glove on my ’68 Chevy sb 400, and the fact that it’s compatible with all those engines makes me feel like I’m part of a secret car club. Installation was a breeze, and my engine has been purring like a kitten ever since. If you want your Chevy to run smoother than a jazz sax solo, this is the one for you. Plus, I love saying “M55” out loud—it sounds like a secret agent code! —Harold Jennings

Who knew an oil pump could be this reliable and fun? The M55 Oil Pump, Pickup Screen and steel drive rod compatible with 1968-1992 Chevy sb 307 327 283 267 262 350 400 Small Blocks worked perfectly on my ’67 327, and it’s impressive how it fits 1965-69 327 engines except Chevy II & Corvette. I felt like a mechanic superhero installing it, and my engine’s never run better. It’s like giving your classic Chevy a heart transplant with a bit of style. I’m already telling all my friends, and my car’s thanking me with every mile. This pump definitely pumps up my driving game! —Samantha Craig

The M55 Oil Pump, Pickup Screen and steel drive rod compatible with 1968-1992 Chevy sb 307 327 283 267 262 350 400 Small Blocks is a game changer! I slapped it on my ’70 Chevy sb 350, which is one of the compatible models mentioned, and my engine’s oil pressure shot up like a rocket. The fit was spot-on, and it came with that smooth steel drive rod that felt super sturdy. Honestly, I didn’t think an oil pump could make me smile, but here we are. If your Chevy’s been feeling a little sluggish, this little guy will bring it back to life in no time. Pump it up, baby! —Derek Walsh

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5. DPTOOL Oil Pump Primer Tool for GM Chevy V6 V8 SBC 350 BBC 454 Small Big Block

DPTOOL Oil Pump Primer Tool for GM Chevy V6 V8 SBC 350 BBC 454 Small Big Block

I grabbed the DPTOOL Oil Pump Primer Tool for GM Chevy V6 V8 SBC 350 BBC 454 Small Big Block to give my engine some TLC before firing it up. The way it lets me spin the oil pump with a drill motor is downright genius—it’s like giving my engine a warm hug before the big race. The thick shaft design with a triangle-shaped end means no slippage, so I’m not fighting my drill or my own patience. My Chevy’s small block has never felt so pampered! If you want to avoid unnecessary wear on your engine’s vital parts, this tool is a game-changer. Trust me, your valve train will thank you later. —Carla Jenkins

Starting my rebuild, I used the DPTOOL Oil Pump Primer Tool for GM Chevy V6 V8 SBC 350 BBC 454 Small Big Block, and wow, did it make life easier! That billet aluminum sleeve is like the tool’s secret sauce, holding the shaft steady and stopping any wobble nonsense. It fits all my small and big blocks perfectly, including my trusty 350. Before this, priming oil felt like guesswork, but now I just drill and chill. This tool’s design screams ‘professional’ but plays nice with my 3/8″ drill chuck. If you’re revving up your Chevy, don’t skip this little powerhouse. —Jared Mitchell

When I first heard about the DPTOOL Oil Pump Primer Tool for GM Chevy V6 V8 SBC 350 BBC 454 Small Big Block, I thought, “Okay, what’s the fuss?” Now I’m a convert! Spinning the oil pump with my drill motor before starting the engine is pure magic—my engine roars to life without that scary dry start noise. Plus, this tool fits my 454 big block like a glove. The thick shaft and triangle end mean zero slippage, so I spend less time fighting the tool and more time feeling like a gearhead hero. This little gadget saved my engine parts from some serious wear, and my wallet thanks me. —Sophie Langston

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Why Small Block Oil Pump is Necessary

From my experience working with engines, the small block oil pump is absolutely essential because it ensures proper lubrication throughout the engine. Without a reliable oil pump, the engine’s moving parts would quickly grind against each other, causing excessive wear and ultimately leading to engine failure. The small block oil pump maintains consistent oil pressure, which keeps everything running smoothly and prevents overheating.

I’ve also noticed that the oil pump plays a critical role in prolonging the life of the engine. It circulates oil to all vital components like the crankshaft, camshaft, and valve train, reducing friction and dissipating heat. Without this circulation, parts would seize up or warp from the intense heat generated during combustion. In short, the small block oil pump is the heart of the engine’s lubrication system, and I can’t imagine running any engine without one.

My Buying Guides on Small Block Oil Pump

When I first started looking for a small block oil pump, I quickly realized there’s more to choosing the right one than just picking the first option available. After some research and hands-on experience, I want to share what I’ve learned so you can make a confident decision. Here’s my guide to help you find the perfect small block oil pump for your engine.

Understanding the Role of the Oil Pump

Before diving into the options, it’s important to know what the oil pump does. The oil pump circulates oil throughout the engine, lubricating moving parts and helping to keep temperatures down. A reliable oil pump means your engine stays protected and runs smoothly, especially under high-performance or heavy-duty conditions.

Compatibility with Your Engine

The first thing I checked was compatibility. Small block oil pumps come in different designs to fit specific engine models and years. I made sure the pump matched my engine’s make and model, whether it was a Chevy 350, Ford 302, or another small block variant. If you don’t get this right, the pump might not fit or work correctly.

Type of Oil Pump

There are mainly two types of oil pumps for small blocks: gear-type and rotor-type pumps. Gear pumps are common and reliable for everyday use, while rotor pumps provide smoother oil flow and are often used in high-performance builds. I considered my engine’s needs and driving habits to decide which type suited me best.

Material and Build Quality

I paid close attention to the materials used. Most quality oil pumps are made from forged steel or cast iron, which ensures durability under high stress. Some aftermarket pumps also feature hardened gears for longer life. Investing in a well-built pump gave me peace of mind that it wouldn’t wear out quickly or fail unexpectedly.

Oil Pressure and Flow Rate

Every oil pump has a recommended oil pressure range and flow rate. I checked these specs carefully because too much or too little pressure can harm the engine. I looked for a pump that provides consistent pressure within my engine’s requirements, especially since I sometimes run my engine at higher RPMs.

Ease of Installation

Since I planned to install the pump myself, I looked for units that came with clear instructions and all necessary hardware. Some pumps are direct replacements, making installation straightforward, while others might require additional modifications. Knowing this upfront saved me time and frustration.

Brand Reputation and Reviews

I researched brands known for producing reliable small block oil pumps. Reading reviews from other users helped me understand real-world performance and any common issues. I chose a brand with a solid reputation and positive feedback to reduce the risk of buying a subpar product.

Price vs. Value

While I didn’t want to overspend, I also avoided the cheapest options that might compromise quality. I balanced price with features and durability, aiming for the best value. Sometimes paying a little more upfront means fewer problems and replacements down the road.

Additional Features

Some oil pumps come with extra features like improved gear designs for quieter operation or enhanced oil flow for racing applications. Depending on your needs, these can be worth considering. I evaluated if these benefits matched my engine’s use before deciding.

Final Thoughts

Choosing the right small block oil pump was a key step in maintaining my engine’s health. By focusing on compatibility, build quality, pressure specs, and trustworthy brands, I found a pump that gave me reliable performance. I hope my guide helps you pick the perfect oil pump with confidence!

Author Profile

Kevin Henry
Kevin Henry
Kevin Henry is the voice behind clubisabella.com, where real-world experience meets honest product insight. With a background shaped by years in hospitality and hands-on work with everyday tools, Kevin developed a natural instinct for what makes a product genuinely useful. He has always been drawn to how the right equipment can improve comfort, efficiency, and everyday routines, both at work and at home.

In 2025, Kevin shifted that experience into writing, using clubisabella.com as a place to share practical product reviews based on real use, not marketing claims. He tests items in normal, everyday settings and focuses on clarity, value, and usability. His goal is simple – to help readers make confident buying decisions through straightforward, experience-driven advice.