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

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Old Mar 9, 2016 | 08:25 PM
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Mark1963's Avatar
Mark1963
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Default spark plugs
I just bought a 1990 c4. I just noticed that previous owner put in AC Delco R45TS spark plugs in the aluminum heads, the service manual says to use AC Delco FR5LS plugs will the previous owners choice ruin the heads because those plugs are for cast iron heads, when I try to remove them
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Old Mar 9, 2016 | 08:49 PM
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antfarmer2
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Hope he used antisieze.
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