Cylinder Aluminum Heads

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Cylinder Aluminum Heads
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The newest incarnation of the popular Nissan Altima is a sexy iteration of performance, engineering and good looks. There are a multitude of performance goodies that anyone can purchase to enhance the "wow factor" of the car that's turning heads as one of the best mid-sized sedans available. The great thing about the following product reviews for your 2008 Nissan Altima is that they are easy to install and mostly take less than a days worth of work to apply. Following is a short list of popular and fun accessories that take the plain out of that Jane Altima.

The available powertrain choices in the 2008 Nissan Altima sedan/couple offer pleasing power and respectable fuel economy. But it could always use some good performance amenities to make it that much more of a driver's car. For example, AEM manufactures a cold intake system for the 2.5 and 3.5 V6 engine choices. Cold air intakes boost power by breathing colder air into the manifold, most know that cold air induction makes a difference in effective engine management and makes a great choice as a beginners install. Additionally, a better breathing engine would require a suitable exhaust to dispel those unwanted gases. Vibrant Performance makes an incredible exhaust system for the 2.5 four cylinder. Crafted from free flowing mandrel bends and stainless steel technology ensure many years of maintenance free performance. As a result, both combined accessories will net a 10-15% increase in fuel economy and about 20-25 more horsepower.

To go hand in hand in the performance chain, good balance of suspension mods is a must for a better handing Altima. To get that car to stop on a dime, SP performance created a set of cross drilled rotors for the braking system. These specific rotors are designed to disippate heat better than any factory brake system and will reduce brake fade during long trips. A truly worthwhile investment and an easy kit to install. Another fantastic suspension modification are Eibach's line of Sportline lowering springs. Designed by one of the premier brands of suspension parts, the Eibach springs will get that car a little bit lower to the ground for better cornering and less body roll. Plus the springs will give your new Altima a look all it's own. This car is really starting to come to life.

And finally a little icing on the cake, exterior parts for a truly individualized look. Give your 2008 Altima a slick performance look with a custom grille. T-Rex makes a long line of performance grilles in a mesh style or the ever popular billet aluminum style. Both are available for sedan and couple body styles and give that front end a "high end" look that nobody can ignore. Install some PIAA changeable super white bulbs for that HID look and even you can see better at night with these bright bulb alternative. Also give that Altima some wow factor with a set of Putco's side port vents, available in pairs and look fantastic. Top it all off with In Pro Carwear's set of LED taillights. A new revolution in lighting technology, people following you will see you better with these brighter looking lights. And best of all, these bulbs are so efficient, they won't burn out and therefore saving the driver repair costs in the long run.

With a sweeping new body of the sedan and coupe, come more and more newer items to buy. Many more different and radical parts are still coming out in record numbers. So there is no way to keep track of them all, but it sure would be fun to find that new piece to the slickest custom puzzle. Have fun customizing!

If you liked the information contained in this article about customizing your new car or truck, then I would encourage you to visit my site containing more valuable tips and tricks to make your ride look better, ride better, and get improved gas mileage. Please visit: http://kookoox10-silverado-exhaust.blogspot.com

Shaun Davidson-Automotive and Finance Consultant-2008

What Is the Purpose of a Head Gasket?

What Is the Purpose of a Head Gasket?

Information from:http://www.know-car.com/index.php/what-is-the-purpose-of-a-head-gasket

One of the most critical parts of an engine is the head gasket. Because it is directly involved in the connection between the engine block and cylinder heads, its function is critical to the proper operation of the engine. Although the most common assumption is that cylinder head gaskets simply act as seals between the engine and cylinder head, they actually perform several functions besides sealing the combustion chambers.

Cylinder Sealing

Head gaskets seal the cylinder heads to the engine block. When combustion takes place in the cylinder, the head gasket prevents the pressures created from escaping the cylinder through the space between the cylinder head and block.
Passage Sealing

Head gaskets seal the passages between the engine block and cylinder heads that allow coolant and oil to flow between the engine and cylinder heads. They also serve to direct and sometimes control the flow of these fluids depending upon the application.
Bimetal Stress

Modern vehicle often use iron for construction of the engine block, and aluminum for construction of the cylinder head. The two metals expand and contract at different rates, which cause uneven stress between the two when they are joined together. This is known as "Bimetal Stress." Head gaskets must compensate for this uneven movement by allowing the two metals to move without allowing the friction of the movement to damage the gasket, which can cause leaks.
Heat Transfer

Head gaskets allow heat to move between the engine block and cylinder heads by allowing heat to move freely through the gasket material. Allowing the heat to move freely between these parts helps to evenly distribute heat among all parts of the engine, and reduces the concentration of heat in one area of the engine.
Compression Ratio

Some head gaskets also act as shims or spacers between the engine block and cylinder head. These gaskets affect the compression ratio by changing the total volume size of the cylinder. Thicker gaskets increase the distance of the head from the block, increasing the volume of the cylinder and decreasing the compression ratio, and thinner gaskets decrease the volume and increase the compression ratio.

 

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Big Block Cylinder Heads Oval or Rectangular port?

(454) 496ci
What is better for a superchaged (procharger) big block w/12 to 17 psi.
Not for serious racing, just want the most Horsepower

Aluminum Heads:

Oval port 270cc / 119cc or
Rectangular port 320cc / 119cc

Please help!

I own a shop, a drag car & truck. What you are looking for is the best flowing heads that handle the larger numbers on the runners. The best place to get the skinny on this would be
www.chevyhiperformanc.com
and do a search on the heads. You will be able to see almost every head made on there, along with the numbers they make. Sometimes you can find some that make just a little less horsepower, but make larger numbers on the torque end. Torque is what moves the vehicle. The rectangular port heads make more torque due in part to the big numbers on the intake runners. It is a no brainer when it comes to boost that more cc's on the intake will mean more power due to volume. When applying boost, one does this to cram all the (volume) air down the engine you can without blowing the heads off the engine. 12-17 lbs. of boost isn't that much, but when one looks at the volume of the runners, bigger is better.
I suspect you wouln't see much difference on the low end, and the smaller runners may even be a little stronger on the low end, but the larger ones will shine about 3/4 track. I have always believed in big power at the top side, due in part to traction being the problem anyway.
Glad to help out, Good Luck!!!

Mighty mite
When I first encountered the tiny Suzuki Celerio I had no idea that it could be so much fun to drive.

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