Cylinder Head

  • Toyota 4Runner Celica Pickup Loaded Cylinder Head

    Ships Same Day for orders placed by 4pm ET

    $326.95
    1
    Save 39%
    List: $535.95 Save: $209.00
    Part #: 1AECH00001

    IN STOCK

  • Dodge Chrysler Rocker Arm Shaft Assembly Mopar 4892293AC

    PART DETAILS

    Ships Same Day for orders placed by 4pm ET

    $416.95
    1
    Save 37%
    List: $657.95 Save: $241.00
    Part #: MPECH00001

    IN STOCK

  • Toyota 4Runner Celica Pickup Loaded Cylinder Head with Gasket & Bolts

    PART DETAILS

    • Includes: with Gasket & Bolts
    $387.95
    Save 39%
    List: $637.95 Save: $250.00
    Part #: 1AEEK00341

    Out of Stock

  • Dodge Chrysler Rocker Arm Shaft Assembly Pair Mopar 4892293AC

    PART DETAILS

    • Quantity: Pair

    Ships Same Day for orders placed by 4pm ET

    $819.95
    1
    Save 37%
    List: $1,293.95 Save: $474.00
    Part #: MPEEK00011

    IN STOCK

Cylinder Head

What is a Cylinder Head and where is it Located?

The cylinder head, sometimes called the engine head, is a precisely engineered block of metal on the top of your car or truck’s engine. It houses many of the engine’s moving parts, including the intake and exhaust valves, valve springs and lifters, and the spark plugs. In engines with overhead cams (OHC), the cam shafts are mounted to the cylinder head. The cylinder head also contains inlets that allow coolant from the radiator and oil to flow through the engine. 

The cylinder head also contains the engine’s combustion chambers. The intake manifold feeds air into the head through the intake ports, past the intake valves and into the combustion chamber. Once the air and fuel have been combusted, exhaust gasses exit the combustion chamber past the exhaust valves, through the exhaust ports, to the exhaust manifold. 

Inline or straight engines have one cylinder head, while V-shaped engines and boxer engines have two, one for each bank of cylinders. Cylinder heads are usually made of cast iron or aluminum. For an even more in-depth explanation of cylinder heads, including even more details on ow they work, the different types, and more, check out our cylinder heads guide.

How do I Know if my Cylinder Head Needs to be Replaced?

The most prevalent problem with automotive cylinder heads is that they can crack or warp. Since combustion occurs inside them, they are exposed to high heat. Of course, they have coolant flowing through them, but coolant leaks and other cooling problems may cause the engine to overheat. Overheating makes the metal of the engine expand. Sometimes the cylinder head and the engine block are made of different metals (usually aluminum and iron, respectively). The different metals expand at different rates, which put strain on that metal. That can lead to cracks or warping in the cylinder head. 

A cracked or warped cylinder head will often leak coolant, which exacerbates your problem. Frequent overheating or lost coolant might indicate a cracked cylinder head. Cylinder head cracks can also hinder your engine’s performance. You may experience engine misfires. If left untreated, a cracked cylinder head can lead to further engine damage. Some cracks might be visible to the naked eye. A pressure test can also be used to identify cracks in the cylinder head. 

Can I Replace a Cylinder Head Myself?

Although an experienced do-it-yourselfer could replace a cylinder head, this might be a job you’d prefer to leave to the professionals. We would not advise that you attempt replacing your cylinder head without having a lot of prior mechanical experience. Improper installation could lead to serious damage to the engine and necessitate even bigger repairs. 

Replacing a cylinder head assembly is a lengthy process with many steps. Your vehicle’s oil and coolant need to be drained, since they flow through the cylinder head. The intake and exhaust manifolds need to be separated from the cylinder head. The valve covers and timing chains need to be removed, as do any accessories, like the power steering pump, that get between you and the cylinder head. 

With all that done you can remove the cylinder head. Be very careful not to scrape or scratch the engine block as you remove the cylinder head. Doing so will make any leak problems you had before even worse. To avoid warping the metal, there is a specific pattern you are meant to remove and install the cylinder head bolts in. This can be found in a service manual. When you are installing the new cylinder head, you will want to consult the service manual for the appropriate torque to tighten the bolts to. You can then reverse all the previous steps to put everything back together. 

Need a Cylinder Head Replacement?

Your car or truck’s cylinder head is a part that has a direct effect on engine performance. That is why it needs to be properly maintained and kept away from harm in order to avoid any problems with the vehicle’s engine. If you have to the realization that your cylinder head needs to be replaced, whether it’s because it has been damaged or you are trying to improve your car or truck’s performance, then 1A Auto is your source for new, aftermarket cylinder heads. We carry replacement cylinder heads for a number of makes and models, and at great prices. A cylinder head replacement from 1A Auto is just what you need to get your vehicle running great again!

We also make shopping for a replacement cylinder head assembly for your car easy - we're here to help you select the right parts for your vehicle! Call our customer service toll free at 888-844-3393 if you have any questions about our aftermarket engine cylinder heads, warranty, compatibility or to purchase, or you can buy online.

Choose the Make of Your Vehicle

FAST & FREE
SHIPPING

Same Day Shipping

In stock orders ship same day when ordered by 4pm ET. Need your parts faster? Select expedited shipping at checkout.

QUALITY
AUTO PARTS

Guaranteed to Fit

Our team of auto experts work hard to provide you with the highest quality, direct fit replacement auto parts. We know not all auto parts are created equal. This is why we enforce a strict level of product standards and sourcing with every part.

EXPERT USA
CUSTOMER SUPPORT

USA Customer Support

Our goal is to exceed our customers' expectations every day. We are a team of passionate auto enthusiasts who are here to help. If you have a question about our parts or a repair contact us.

HOW-TO
VIDEOS

Instructional Video Library

Our 1A Auto Video Library has thousands of how-to auto repair installation videos specific to year, make and model. Each video guides you with step-by-step instructions to empower you to tackle your own repairs on your car, truck, SUV, or van.

Go To Top
Loading...