Original radiator cap.
#1
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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.
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Car: 1990 Iroc Z
Engine: L98
Transmission: 700r4
Axle/Gears: 9 bolt
Re: Original radiator cap.
My cap is round metal and says AC RC27 on it (made in England). I believe it to be the original cap. My car is a 90 Iroc L98.
#3
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Location: Erlanger, KY
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Car: 1989 Iroc-z
Engine: 350 TPI
Transmission: Auto 700R4
Axle/Gears: 9 bolt - 2.77
Re: Original radiator cap.
Thanks 71nova. I thought that would be the original type cap. I knew it wouldnt be the black plastic cap. Maybe on 4th gens but not on 3rd gens. I guess they changed the design of them over the years and kept the same part #. Thanks again.
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