C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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1971 lt1

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Old Feb 7, 2016 | 07:42 AM
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thelal1
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Default 1971 lt1

On the cooling systems was the expansion tank on all or just some. I have notice some cars with a radiator cap then others with the tank.
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Old Feb 7, 2016 | 08:34 AM
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Hi t,
In 71 the small block engines that used an aluminum radiator, (base, 4-speed, no a/c), had the aluminum expansion tank mounted on the passenger's side apron with a radiator cap.
71 small block engines with automatic transmissions and/or air conditioning used a copper radiator with the radiator cap on it and no expansion tank.
71 LT-! engines used the copper radiator with radiator cap and no expansion tank.
In addition for 71 ZR-1, ZR-2, LS-6, and LS-5 without a/c, cars used the aluminum radiator and expansion tank with cap.
Regards,
Alan

Last edited by Alan 71; Feb 7, 2016 at 08:38 AM.
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