Original radiator cap. - Third Generation F-Body Message Boards

Yesterday, 11:43 PM	#1
Senior Member     Join Date: Nov 2001 Location: Cincinnati, OH Posts: 537 Car: 1989 Iroc-z Engine: 350 TPI Transmission: Auto 700R4 Axle/Gears: 9 bolt - 2.77	Original radiator cap. I just need to know what is the original style radiator cap that came on our cars. Mines an 89 iroc with a 350 tpi. I have found 3 different styles of the original ac delco part # of rc27 or gm # 10409635. The 3 that come up are a round silver cap, a round cap that has turning ears and a black label and a black plastic cap. For you guys with unmolested cars, let me know if you still have the original cap and which style it is. Thanks. __________________ 1989 Iroc-z, stock 350 TPI, auto trans, oil cooler, leather int., bose stereo, t-tops, Single Magnaflow cat with Magnaflow cat-back exhaust, 4 wheel disc, gold pkg., and custom aftermarket hood. Pics of my 89 Iroc http://www.thirdgen.org/techboard/me...y-89-iroc.html