C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Radiator flush

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Old Dec 30, 2024 | 07:30 PM
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Default Radiator flush

can you use "blue devil radiator flush" on a 1996 c4 corvette engine?
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Old Dec 31, 2024 | 07:02 AM
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Sure, you can use it but here is the problem. In the 96 (I have one) there is a good 1 1/2 gallons that is trapped in the engine block that does not drain out. After using the flush it is hard to get all the flush out of the block. If your radiator has never been pulled out then you should pull it to clean it in ways you can't while in. Here is how I cleaned out mine. The crud is in the engine block and requires not just flushing out but vigorous movement of water and air to break it loose. Dan

Shop vac flush works! - CorvetteForum - Chevrolet Corvette Forum Discussion
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