Dewitts Corvette Direct Fit Radiator 2005-06 C6 Z51/MZ6 only Dewitts Corvette Direct Fit Radiator 2005-06 C6 Z51/MZ6 only Dewitts   This Direct Fit radiator features two rows of 1" tubes, which doubles the cooling capacity of a factory single row. Our exclusive "press formed" end tanks are hand tig welded by expert craftsman, eliminating the factory plastic tanks. This heavy duty radiator features both an EOC (left side) and TOC (right side). This is a true Direct Fit for 2005 & 2006 Z51 option cars. 2007 Z51 did not have the EOC option. (Use A05A for 2007-09 with Z51)  There are many philosophies on how to properly cool Corvette engines. From electric blower fans to water additives, people will try just about anything to keep that temperature gauge down. But many Corvette owners overlook the obvious, a good radiator. Let’s start with something as basic as the thermostat. A thermostat is supposed to modulate, just like the thermostat in your house turns the furnace on and off. When the coolant reaches the thermostat setting it opens and lets flow go through the radiator. The radiator, if capable, will drop the temperature down to a point the thermostat modulates. This sounds pretty simple but this doesn’t always happen. In many cases, the thermostat opens and the radiator isn’t effective enough to lower the temperature. So it goes 30-40 degrees higher than the thermostat. You can’t solve this problem with blower fans, high-octane booster, or an $8 bottle of special water. Depending on what year Corvette, the problem can vary, but the solution is always the same. Aluminum radiators can solve your overheating problem. Why are aluminum radiators so much better? Look at the cut away view of a typical four-core brass/copper (Fig. 1) radiator. The area “a” indicates where the tube is in contact with the fin. This is the only area that provides heat dissipation. The area “b” is dead space and does not provide any cooling. Fig. 1 Typical (4) four tube brass/copper design The trick to better cooling is wider tubes. This increases the “tube to fin” contact area, which determines the radiator efficiency. A typical copper radiator uses 3/8” wide tubes (Fig. 1) while the aluminum radiators (Fig. 2) use tubes from 1” to 1 1/4” wide. When a radiator is designed with wide tubes, the tubing wall thickness must be increased to prevent the tube from expanding or a term known as “ballooning”. Fig. 2 Typical aluminum tube design Designing a brass/copper radiator with wide tubes is not practical because the radiators could weigh as much as sixty pounds. The lighter weight aluminum can be designed with a heavier wall thickness with very little effect on weight. Several major companies including Delphi, Visteon, Griffin, and many others have adopted this theory and no longer make any brass/copper radiators. Almost every racecar today is currently using an aluminum radiator because of the benefits described above. The chart below illustrates the test results when comparing two equal size radiators. As you can see, the brass radiator was rated almost 30% below the factory design. If your Corvette was originally equipped with an aluminum radiator, then it must stay that way to function properly. If the original factory radiator was brass & copper then you might want to consider upgrading to aluminum. This is a great idea for cars with Big Blocks or air conditioning. When considering a new radiator, ask a lot of questions. If your dealer believes the only difference between the copper/brass and aluminum is the cost, look somewhere else. Anyone suggesting you deviate from an original aluminum radiator either doesn’t know any better or just wants to sell you what's in stock. A good radiator is the only way to protect your engine from excessive heat.

Dewitts Corvette Direct Fit Radiator 2005-06 C6 Z51/MZ6 only

Code: DEW-A05AE
$745.00
In Stock
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This Direct Fit radiator features two rows of 1" tubes, which doubles the cooling capacity of a factory single row. Our exclusive "press formed" end tanks are hand tig welded by expert craftsman, eliminating the factory plastic tanks. This heavy duty radiator features both an EOC (left side) and TOC (right side). This is a true Direct Fit for 2005 & 2006 Z51 option cars. 2007 Z51 did not have the EOC option. (Use A05A for 2007-09 with Z51)

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There are many philosophies on how to properly cool Corvette engines. From electric blower fans to water additives, people will try just about anything to keep that temperature gauge down. But many Corvette owners overlook the obvious, a good radiator.

Let’s start with something as basic as the thermostat. A thermostat is supposed to modulate, just like the thermostat in your house turns the furnace on and off. When the coolant reaches the thermostat setting it opens and lets flow go through the radiator. The radiator, if capable, will drop the temperature down to a point the thermostat modulates. This sounds pretty simple but this doesn’t always happen.

In many cases, the thermostat opens and the radiator isn’t effective enough to lower the temperature. So it goes 30-40 degrees higher than the thermostat. You can’t solve this problem with blower fans, high-octane booster, or an $8 bottle of special water.

Depending on what year Corvette, the problem can vary, but the solution is always the same. Aluminum radiators can solve your overheating problem. Why are aluminum radiators so much better?

Look at the cut away view of a typical four-core brass/copper (Fig. 1) radiator. The area “a” indicates where the tube is in contact with the fin. This is the only area that provides heat dissipation. The area “b” is dead space and does not provide any cooling.

Fig. 1 Typical (4) four tube brass/copper design

The trick to better cooling is wider tubes. This increases the “tube to fin” contact area, which determines the radiator efficiency. A typical copper radiator uses 3/8” wide tubes (Fig. 1) while the aluminum radiators (Fig. 2) use tubes from 1” to 1 1/4” wide. When a radiator is designed with wide tubes, the tubing wall thickness must be increased to prevent the tube from expanding or a term known as “ballooning”.

Fig. 2 Typical aluminum tube design

Designing a brass/copper radiator with wide tubes is not practical because the radiators could weigh as much as sixty pounds. The lighter weight aluminum can be designed with a heavier wall thickness with very little effect on weight. Several major companies including Delphi, Visteon, Griffin, and many others have adopted this theory and no longer make any brass/copper radiators.

Almost every racecar today is currently using an aluminum radiator because of the benefits described above.

The chart below illustrates the test results when comparing two equal size radiators.
As you can see, the brass radiator was rated almost 30% below the factory design.

If your Corvette was originally equipped with an aluminum radiator, then it must stay that way to function properly. If the original factory radiator was brass & copper then you might want to consider upgrading to aluminum. This is a great idea for cars with Big Blocks or air conditioning.

When considering a new radiator, ask a lot of questions. If your dealer believes the only difference between the copper/brass and aluminum is the cost, look somewhere else. Anyone suggesting you deviate from an original aluminum radiator either doesn’t know any better or just wants to sell you what's in stock. A good radiator is the only way to protect your engine from excessive heat.

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This Direct Fit radiator features two rows of 1" tubes, which doubles the cooling capacity of a factory single row. Our exclusive "press formed" end tanks are hand tig welded by expert craftsman, eliminating the factory plastic tanks. This heavy duty radiator features both an EOC (left side) and TOC (right side). This is a true Direct Fit for 2005 & 2006 Z51 option cars. 2007 Z51 did not have the EOC option. (Use A05A for 2007-09 with Z51)

Â

There are many philosophies on how to properly cool Corvette engines. From electric blower fans to water additives, people will try just about anything to keep that temperature gauge down. But many Corvette owners overlook the obvious, a good radiator.

Let’s start with something as basic as the thermostat. A thermostat is supposed to modulate, just like the thermostat in your house turns the furnace on and off. When the coolant reaches the thermostat setting it opens and lets flow go through the radiator. The radiator, if capable, will drop the temperature down to a point the thermostat modulates. This sounds pretty simple but this doesn’t always happen.

In many cases, the thermostat opens and the radiator isn’t effective enough to lower the temperature. So it goes 30-40 degrees higher than the thermostat. You can’t solve this problem with blower fans, high-octane booster, or an $8 bottle of special water.

Depending on what year Corvette, the problem can vary, but the solution is always the same. Aluminum radiators can solve your overheating problem. Why are aluminum radiators so much better?

Look at the cut away view of a typical four-core brass/copper (Fig. 1) radiator. The area “a” indicates where the tube is in contact with the fin. This is the only area that provides heat dissipation. The area “b” is dead space and does not provide any cooling.

Fig. 1 Typical (4) four tube brass/copper design

The trick to better cooling is wider tubes. This increases the “tube to fin” contact area, which determines the radiator efficiency. A typical copper radiator uses 3/8” wide tubes (Fig. 1) while the aluminum radiators (Fig. 2) use tubes from 1” to 1 1/4” wide. When a radiator is designed with wide tubes, the tubing wall thickness must be increased to prevent the tube from expanding or a term known as “ballooning”.

Fig. 2 Typical aluminum tube design

Designing a brass/copper radiator with wide tubes is not practical because the radiators could weigh as much as sixty pounds. The lighter weight aluminum can be designed with a heavier wall thickness with very little effect on weight. Several major companies including Delphi, Visteon, Griffin, and many others have adopted this theory and no longer make any brass/copper radiators.

Almost every racecar today is currently using an aluminum radiator because of the benefits described above.

The chart below illustrates the test results when comparing two equal size radiators.
As you can see, the brass radiator was rated almost 30% below the factory design.

If your Corvette was originally equipped with an aluminum radiator, then it must stay that way to function properly. If the original factory radiator was brass & copper then you might want to consider upgrading to aluminum. This is a great idea for cars with Big Blocks or air conditioning.

When considering a new radiator, ask a lot of questions. If your dealer believes the only difference between the copper/brass and aluminum is the cost, look somewhere else. Anyone suggesting you deviate from an original aluminum radiator either doesn’t know any better or just wants to sell you what's in stock. A good radiator is the only way to protect your engine from excessive heat.