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Different valve covers

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Old Apr 28, 2019 | 08:49 PM
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Default Different valve covers
I have a '75 L48 and the valve cover are the type with little fins and the flag emblems and I've seen same cars with plain orange ones. Why the difference ?
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Old Apr 28, 2019 | 09:13 PM
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The L82 cars had the finned aluminum valve covers. You could by them from the dealer though and install them on L48's.

Mike
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Old Apr 28, 2019 | 10:25 PM
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FWIW - If the valve covers are black they are L82, if the valve covers are silver they are LT-1, either way the valve covers you now have are/were a popular upgrade to the base engine.
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Old Apr 29, 2019 | 09:29 AM
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Early L-82's had silver, later ones had black.
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Old May 5, 2019 | 01:02 AM
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And L-81s and L-83s had black magnesium covers
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Old May 5, 2019 | 08:23 AM
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and they increased power by 30%.
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