There are several advantages of having a flathead intake manifold. Let’s take you step by step, type by type, and find the best flathead intake manifold for you.

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Our Top Picks:

Best Overall: Buy: Nibbi Flathead Intake Manifold READ REVIEW

Best With Part Number: Buy: Gm Flathead Intake Manifold READ REVIEW

Best For Perfect Compatibility: Buy: Keenso Flathead Intake Manifold READ REVIEW

Best For Purchase With Confidence: Buy: Mitzone Flathead Intake Manifold READ REVIEW

Best For Better Performance: Buy: Speedway Motors Flathead Intake Manifold READ REVIEW

Best For Air Flow: Buy: Auto Dynasty Flathead Intake Manifold READ REVIEW

Best For Sbc: Buy: Jegs Flathead Intake Manifold READ REVIEW

Best For High Quality: Buy: Auto Shack Flathead Intake Manifold READ REVIEW

Best For L: Buy: Ateam Performance Flathead Intake Manifold READ REVIEW

Best For Excellent Fit: Buy: Acdelco Flathead Intake Manifold READ REVIEW

Best For Boost: Buy: Dimaier Flathead Intake Manifold READ REVIEW

Best Overall: Nibbi Flathead Intake Manifold

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Nibbi makes beautiful and great manifolds with classic and higher-grade materials. The Nibbi Flathead Intake Manifold comes with a timing chain and it looks great. Make sure this fits by entering your model number. Further, this is upper, is built with great parts and it is highly recommend.

Most importantly, the nibbi flathead intake manifold is made of quality materials and it is suitable for inner diameter.

Most customers found that the manifold works with a 30 mm carburetor. Also, a few strongly agree that the manifold could fit the original keihin carburetor. Further, a few say that this manifold is for a 125cc, 150cc gy6 engine.

• Fit for gy6 125cc 150cc scooter.
• 33mm rubber fit for pe24mm 26mm 28mm 30mm pwk24mm 26mm 28mm carburetor.
• It is brand new and it is flat.

Best With Part Number: Gm Flathead Intake Manifold

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The Gm Flathead Intake Manifold's material feels more premium than its price would suggest. The gm flathead intake manifold works for engine light and it allows for easy install. Recommended replacement part for your gm vehicle's original factory component. Moreover, this is very easy and it is good for exact replacement.

The manifold fixed the problem, comes with great parts and it is great for engine codes. And, it is right, fits well and it is limited. Lastly, the gm flathead intake manifold is super easy, is brand new, it is straight forward and has a product design.

Almost all buyers opine that the manifold is easy to install, fits perfectly and fixes problems. Also, they also found that the manifold is for a 2013 chevy cruze 1.4. And, they also found that the manifold would fit only Chevrolet and buick.

• This includes fuel rail or throttle body.
• This comes with seals installed and fits 1.4 l chevrolet engines.
• This comes with a check valve, orange rubber nipple, bolts and gasket already.
• This is manufactured to gm oe specification for fit, form, and function.

Best For Perfect Compatibility: Keenso Flathead Intake Manifold

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The Keenso Flathead Intake Manifold's high-end materials make sure that it ages well with use. The keenso flathead intake manifold is suitable for aluminium manifold with actuator motor 03l129086. You can find your satisfied products here. This intake manifold bracket is made of premium aluminum alloy material. This intake manifold bracket is sturdy, not easy to age and abrasion resistant, to ensure maximum strength and durability for long - lasting use.

Above all, the keenso flathead intake manifold can be trusted for premium quality and it is best for good fit.

Most customers found that the manifold comes with instructions, and it also, very obviously, comes from China. In addition, they strongly agree that this intake manifold p2015 repair bracket kit will not work on audi q7 2007 tdi. In conclusion, most buyers call the manifold functionally comfort, and no one questions it.

• This is designed for perfect compatibility and it does for fuel mileage.
• Repair TDI cr diesel p2015 fault code immediately and save your money.
• This is inexpensive, works for about an hour and it increases in power.
• This going strong, cleared the code and it makes for an easy install.

Best For Purchase With Confidence: Mitzone Flathead Intake Manifold

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Mitzone is known for creating pragmatic and minimalist manifolds for people on the go, and its line of Mitzone Flathead Intake Manifolds definitely falls in line with that reputation. The mitzone flathead intake manifold is very easy, is limited and it offers it for purchase with confidence. The Manufacturer says: We aim to provide high - performance products to earn your trust and meet your satisfaction. And, it allows for a very good price and it works fine.

The manifold has improved fuel mileage, is designed with good parts and it would be perfect with product description. And, it fits great and it is good for a competitive price. Finally, the mitzone flathead intakemanifold is a fair price for dodge jeep chrysler 1.8l/ 2.0l/ 2.4l with runner control valve & air pressure sensor + gaskets.

One customer says - "If you have issues with this seller, they will send you the documentation. ". Most buyers agree that the manifold fits more products. Overall, most customers agree that the manifold is functionally comfortable and no one questions it.

• This fits well, is good for best value and it is great for good quality.
• This is Mitzone, glad to meet you at the circle of auto parts.
• This does for gas mileage, makes for a great buy and it is durable.
• Make your car repair environment by focusing on engine parts professionally over 15 years.

Best For Better Performance: Speedway Motors Flathead Intake Manifold

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If you often find yourself confused about convenient and suitable manifold,sss speedway motors ' flathead intake manifold should be your first option for buying. The speedway motor flatheadintake manifold fits a v8 dual carb intake manifold. Manufacturer says: Today, we stock and manufacture automotive parts so you can build what you want. The dual plane manifold design offers better performance over stock style intakes.

Above all, the speedway motors ' flathead intake manifold is made from cast alumimum with machined surfaces for superior longevity.

• The Manufacturer says: With speedway motors, we know how fast you chase your dreams.
• Intake measures 4-1/16" tall overall, and has a 4-3/4" carb spacing on-center.
• Speedway motors is comprised of people, just like you, who love cars.
• This allows use of dual 3-bolt carbs.

Best For Air Flow: Auto Dynasty Flathead Intake Manifold

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Auto Dynasty offers a variety of manifold for personal choice and yet maintains quality in all the variants. The Auto Dynasty Flathead Intake Manifold has a throttle cable bracket and it fits perfectly. Make sure this fits by entering your model number. Moreover, this is higher it is very easy and has a product design.

The manifold is used for fuel pressure, It is great for a great price and has an intake style. Further, it is great for intake gaskets and it is designed for air flow. Lastly, the auto dynasty flathead intake manifold is lower, is right, it can be purchased for throttle body flange and has a cool design.

Most buyers agree that the manifold features in the back of the cap and screw the front of the cap. Moreover, they strongly agree that the manifold looks to be an exact copy of the original. In addition, they strongly agree that the manifold is now ready to be removed from the engine.

• This comes with the throttle body gasket as well.
• This works fine and it allows for more torque.
• These bolts are included in the kit bag.
• This will be where the air inlet duct connects to the throttle.

Best For Sbc: Jegs Flathead Intake Manifold

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Jegs line of manifold comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Jegs Flathead Intake Manifold is perfect for great quality and it is the longest. Make sure this fits by entering your model number. And, the manifold fits Gm and Chevrolet vortec cast iron cylinder heads from 1996 through 2002.

The manifold is designed for a great price and it is great with a power band. Lastly, the Jegs flathead intake manifold fits with popular aftermarket square bore 4150 carburetors including Edelbrock, holley, quickfuel, proform, and more.

Most buyers found that the manifold fits and looks amazing and it is for the older small block chevy. In conclusion, at the price, they believe that they got a steal of a deal with it.

• Idle to 5500 rpm power band for street or mild race applications.
• Fabricated from black cast aluminum for weight savings, great appearance and improved performance.
• This can be used on vortec or 1995.

Best For High Quality: Auto Shack Flathead Intake Manifold

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Auto Shack line of manifolds comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Auto Shack Flathead Intake Manifold is for town cars and it is brand new. Please use amazon's vehicle fitment tool located at the top of this listing to confirm that the part is correct for your vehicle application. In addition, it is made from high quality plastic and aluminum to meet oem specifications. Finally, the auto shack flathead intakemanifold includes gaskets, thermostat and hardware.

Most buyers agree that the manifold is an oem replacement so it will arrive matching the part originally on your vehicle.

• Port outlet dimensions are 1.73" x 1.5" / 44 mm x 38 mm.
• 100% brand new. Gaskets, thermostats and hardware are included.
• New and hot releases.

Best For L: Ateam Performance Flathead Intake Manifold

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Ateam Performance line of manifolds comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Ateam Performance Flathead Intake Manifold includes gaskets and hardware plus includes black fuel rails with braided fuel line. Intake manifold 102mm throttle body fabricated with welded aluminum metal sheet. Further, it looks nice, it is right and has an injection style.

Above all, the ateam performance flatheadintake manifold is higher. It is easy to setup and has an intake style.

Most customers find that the manifold fits nicely, have to delete a steam pipe to imstall it, Ict billet has a steam pipe delete kit for that. Moreover, they say that the manifold includes an intake and has vacuum ports underneath, fittings. Overall, for most customers, Ateam Performance product was just what they wanted.

• This is compatible with Chevrolet gmc pontiac ls ls1 ls2 ls6 silver.
• This comes with all the fittings needed to hook up and fittings.
• This comes with the fuel rails.
• This comes with a 102 mm throttle body.

Best For Excellent Fit: Acdelco Flathead Intake Manifold

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The Acdelco Flathead Intake Manifold's material feels more premium than its price would suggest. The acdelco flathead intake manifold is made for an excellent fit and it can open for air flow. These original equipment intake manifolds have been manufactured to fit your gm vehicle, providing the same performance, durability, and service life you expect from general motors. Moreover, the manifold provides great value and it looks good. Lastly, the acdelco flathead intake manifold is manufactured to gm oe specification for fit, form, and function.

Most customers agree that the manifold is a great option for intakes on a budget. Further, they say that the manifold will work with the vortec 4.8, 5.3, or 6.0. To sum up, buyers found this to be one of the best manifold for daily purposes.

• Recommended replacement part for your gm vehicle’s original factory component.
• Good brand reputation.

Best For Boost: Dimaier Flathead Intake Manifold

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We would, of course, be remiss if we didn't mention Dimaier Flathead Intake Manifold for daily use. The dimaier flathead intake manifold is compatible with cathedral port ls ls1/ls2/ls6 (6.0l 5.6l 5.3l 4.8l) heads. Make sure this fits by entering your model number. In addition, the manifold is made of 3mm (1/8 inch ) thick t6061 sheet aluminum. Most importantly, the dimaier flathead intake manifold will not bend or flex with boost or vacuum.

Almost all buyers agree that the manifold includes yes, the throttle body. Moreover, they strongly agree that the manifold is suitable for certain models of Chevy 5.3. In conclusion, at the price, they believe that they got a steal of a deal with it.

• Delivers what they promise.
• Good investment for the long term.