Zip Corvette Parts Blog

  • How do you change a heater core in a 1968-1982 Corvette with air conditioning?

    Today's Zip Corvette technical question is one that many 1968-1982 Corvette owners have asked when their heater system stopped working properly:

    How do you change the heater core in an A.C. equipped Corvette?

    Answer: 1968-1982 Corvette heater cores typically begin leaking due to a breakdown in materials dropping anti-freeze and coolant on your Corvette’s carpet. This is not a pretty sight. Removal of the heater core takes place from inside your Corvette. First the RH side lower dash pad must be removed, then access can be gained to the inner heater box. Remove all duct work (windshield defrost, floor duct, side ducts, etc.). The main inner heater box is supported to the firewall by 4 to 6 studs, these stud plates are riveted to the inner heater box. By removing the nut on the opposite side of the firewall, the inner box can be removed from the Corvette. The heater core is mounted with straps inside the inner heater box. Once the inner box is removed from the Corvette, the heater core can be replaced and reassembly can begin. At this time it is also a good idea to replace all the seals in your Corvette’s heater & air condition system. Seal kits for 68-77 & 78-82 Corvettes include duct work seals, inner box seals, heater/ac flapper door seals and firewall mount seals for internal and external heater boxes. Replacing these seals not only improves your Corvette’s heater & AC performance, but also eliminates air drafts which are common on all C3 Corvettes.

    For more detailed instructions and pictures on changing a 1968-1982 Corvette's heater core click here.

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  • Corvette Replacement Power Brake Booster for 1984-1991 C4

    1984-1991 Corvette Power Brake Booster 1984-1991 Corvette Power Brake Booster

    1984-1991 C4 Corvette power brake boosters were originally made of plastic, making them very delicate. They often cracked or even melted due to the extreme heat built up under normal operating conditions leaving you with minimal stopping power. With the plastic material on the original boosters simply too fragile, a steel replacement for both modified and daily driver Corvettes is recommended once it goes bad. Zip Corvette carries an excellent replacement brake booster for your C4 Corvette. This steel replacement power brake booster is not "original style" but will perform and last much longer than the stock booster. There are no modifications necessary to install the replacement as it will fit just as your original power brake booster fit from the factory.

    Restore your stopping confidence today by replacing your C4 Corvette's plastic brake booster with a new steel unit from Zip.

    Purchase online at Zip Corvette Parts

  • How do you take the rotors off of a 1965-1982 Corvette?

    Today's Zip Corvette Technical Question is asked many times from customers that are working on 1965-1982 Corvette brakes:

    How do I remove the rotors?

    Answer: From the factory, Corvette rotors were riveted to either the front hub assembly or the rear spindle. To remove the rotors from your Corvette, drill out the rivets, removing the head of the pressed-in rivet and then pull the rotor off. The rivets, still remaining in the hub assembly or spindle, can then be cut or driven out with a hammer. To install the new rotor, the rivets DO NOT need to be replaced. The Chevrolet Corvette service manual recommends simply using the lug nuts of the wheel to hold the rotor in place.

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  • Corvette Polyurethane Suspension Bushing Completion Kit For 1997-2013 C5 & C6

    1997-2009 Poly Suspension Bushing Completion Kit 1997-2009 Poly Suspension Bushing Completion Kit

    A simple job of installing Corvette polyurethane bushings on your C5 or C6 Corvette can quickly turn into a nightmare when you realize the labor involved to re-use your Corvette's original shafts and bushing sleeves. The time involved to burn and/or cut off the old bushings, clean the parts and then re-use them can quickly prolong a job that should take 4-5 hours for installation and turn it into 8-10 hours. Zip's exclusive Corvette shaft & sleeve kit replaces all the aluminum components with new steel components for a quicker polyurethane bushings installation. In doing so, at least 1/3rd of the labor time to install poly bushings in your C5 or C6 Corvette will be saved. The combination of poly bushings & the steel components in this kit is stronger and more responsive than stock, preparing your car for a day at the track, or for a drive down the street.

    Purchase online at Zip Corvette Parts

  • How do you replace the battery on a 68-82 Corvette?

    Today's Zip Corvette Technical Question is one that every first time 68-82 Corvette owner has certainly asked:

    How do I replace the battery?

    Answer: Batteries in the C3 generation are difficult to get to and even more difficult to jump start.  1968 -1982 Corvette batteries are stored in the rear storage area behind the driver’s seat.  First, make sure the driver's seat is moved all the way forward.  Remove the battery by loosening a single fastener to remove the hold down bracket, slide the battery slightly rearward (there is an additional fixed clip in the front) and then lift straight up while straddling the driver’s seat.  Once the new battery is installed, make sure the battery door seal is in good condition. This door seal prevents any gases (original batteries had removable caps and drain hoses on 68-75 models) from leaking into the interior compartment and also tightens the door when closed to eliminate rattles.  Zip’s battery door seal is a 1-piece die cut seal that is manufactured to the correct shape to fit the storage door surround properly, not a replacement roll of straight material.  Just glue the battery door seal in place with standard weatherstrip adhesive.

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  • Corvette Restoration Tip: Chassis

    This Corvette Restoration Tip is brought to you by Zip Corvette and can be found in Zip's free Corvette Parts & Accessories Catalogs - request one online today. Everyone knows Corvette bodies are invulnerable to rust but the same is not true for the chassis. The fully boxed side rails and cross members in 1953-1962 models impart significant strength to the chassis but they are particularly susceptible to rust because water can get trapped inside. 1953-1962 Corvette If the Corvette's chassis has a rust problem it normally manifests itself in the rear most crossmember first. Other sections that are especially at risk include the side rails in the areas beneath the doors. Because the rot p ... Continue reading

  • Corvette Carbon Fiber Door Handle Covers for C6

    Another new Corvette part at Zip. This one for the C6 owner. New C6 carbon fiber door handle covers are now available from Zip Corvette! They are molded into the same shape as the original GM design but have been overlayed with a UV protected high gloss carbon fiber finish. C6 Corvette Carbon Fiber Door Handle Covers As many Corvette enthusiast already know, attention to detail can make a difference on the show field. These carbon fiber door handle covers will without a doubt separate any Corvette from the pack. Door handle covers are Made in the USA. Follow along as Zip installs a new set of these Corvette Door Handle Covers: Continue reading → ... Continue reading

  • Corvette Reproduction Master Cylinders for 1967 C2

    1967 Reproduction Master Cylinder It is no secret that 1967 Corvette master cylinders, both standard and power, have been on the market for years. Many enthusiasts have gotten by with these basic replacements in the past for the simple fact that there were no other options. Well, what about the dual bleeders that were on the original master cylinders? Or the "DC" and "PG" trademarks that were stamped into the front pad? How about the original GM casting numbers? To some, these details may seem pointless but to an NCRS judge, they could matter. Continue reading → ... Continue reading