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Hello,
I have searched the forum allover for instructions on how to changs a
C5 (2002 Z06) radiator. I am replacing stock with a Dewitts. I would be greatfull for any help. Thanks much in advance.
Obviously, drain the system. Outlet is 1/4 turn only, and it will drain out the little port under the car. Then remove the fans by undoing the cables and connectors. Mark everything or take photo's as there is a lot of cables. Remove the intake setup (up to throttle body). Remove radiator support (4 - 10mm bolts, two on each side). Remove the fan assembly by rotating up one side and then sliding out. If you are under the car, you will see the tabs that lock the fans to the radiator, you should be able to figure it out from there as I don't remember which side rotates. Best to work from under the car so you can watch the tabs, once it is unhooked you can support it, move to the top and remove. Remove upper and lower hoses. Unclip the condenser from its tabs in the radiator. Remove the radiator.
I think DeWitts has some instructions on their web site. Also, if you are going to be at Carlisle and can wait, they had the radiator and fan shroud there last year and I practiced removing prior to doing it on the car.