Corvette Parts Blog

Upgrade your 1955-1968 Corvette cooling system with a Direct Fit Aluminum Radiator:

1955-1982 Factory Corvette Radiators do not age well; GM did not design them to last longer then 10 years so if the coolant is not flushed out regularly, dissimilar metals in the cooling system and inefficient anti-corrosion inhibitors lead to internal structural failure. This will ultimately lead to a loss of heat transfer from the built-up deposits inside the radiator tubes leaving you with a hot running Corvette. If your 1955-1982 Corvette is running hotter than you think it should and you have a factory style radiator installed then a direct-fit aluminum radiator may be in your future to solve your Corvette’s Cooling System problems.

Corvette Radiator

Aluminum radiators have become the standard for Corvettes because of their lightweight and durable structure. Some factory Corvette radiators are made of aluminum (Original 55-82 radiators were copper/brass EXCEPT for 61-62, 63-67 327 & 68-72 350 4sspd w/o AC. They were originally aluminum.) and would work great if they had a larger core, were not sealed with simple crimp tabs, and did not have plastic end-tanks, but they are all made this way. With that said, the ideal Corvette Radiator would have a larger aluminum core and be completely welded together to make a complete one-piece unit. Many aftermarket aluminum radiators do cool much more efficiently then the stock Corvette Radiator but will fall into one of two categories: Epoxy sealed and those that are not truly “Direct-Fit”
Epoxy: Some use epoxy to seal the coolant lines running to and from the end-tanks. Though it may seem like one complete unit it can still be highly susceptible to leaks once this epoxy breaks down. When this happens it is back to square one shopping for another radiator all over again. Not Truly Direct-Fit: There are other aluminum radiators manufactured without the use of epoxy and because of the excellent craftsmanship they will keep your Corvette running cool for a long time. The problem is you will not be spending a nice Saturday afternoon installing them. Many will require multiple modifications some even to the extreme of manually bending the brand new radiator to make it fit your Corvette. Although they may be advertised as an “easy fit” they are not truly “Direct-Fit” Radiators.

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Core, Corvette Cooling, Corvette Direct Fit Radiator, Corvette End Tanks, Corvette Overheating, Corvette Radiator, GM, Performance

Upgrade your C4, C5, or C6 Corvette cooling system with a Direct Fit Aluminum Radiator:

With a 100% stock 1984-2009 Corvette the factory radiator will work efficient enough to keep the car running cool. As soon as you begin modifying your Corvette you are going to push the factory radiator beyond its limits. The reason for radiator failures in modified Corvettes is a result of the single row core design. The end tanks were made of plastic and held in place with small crimp tabs and a neoprene rubber gasket was used to seal the tanks to the core. Frequent end tank failures and gasket leaks are just a few of the common problems associated with factory radiators installed in modified Corvettes. For complete assurance that your next radiator will not fail consider a Direct Fit Aluminum Radiator. They feature press formed end tanks that are tig welded directly to the double row core, providing a permanent seal.

Stock Single Row vs. Direct Fit Double Row Radiator

At Zip Corvette we offer the best Direct Fit Radiators on the market for C4, C5, & C6 Corvettes. Our Corvette Direct Fit Aluminum Radiators are just what the name implies; a direct fit. Many companies offer replacement Corvette radiators that are considered “direct fit” but in fact most require some alterations. True Direct Fit radiators are designed to install into the stock mounting and use the factory connections without any modifications or adapters. Each Direct Fit Radiator starts with a USA made core that is furnace brazed in a force nitrogen furnace. They feature two rows of 1″ cooling tubes (which will help double the cooling capacity of stock radiators), a serpentine fin, and are epoxy free. Each Direct Fit tank is manually tig welded by expert craftsmen, providing the ultimate in strength and appearance.

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automatic, C4, C5, C6, Corvette Cooling, Corvette Direct Fit Radiator, Corvette Dual Fan Upgrade Kit, Corvette Engine Oil Cooler, Corvette Radiator, Corvette Transmission Cooler, LS1, LS6, Z06, Z51