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'72 LT1 or not?

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Old Feb 15, 2007 | 09:12 AM
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Default '72 LT1 or not?

Hi folks, visiting from C5. I saw an add for a 1972 Coupe, so far photos only. Photo shows a SBC, painted orange tin valve covers, black dual snorkel air cleaner, air-conditioned, 4 speed. It has the "Big block" style hood.

How can I tell if it was an original LT1 Corvette? Do C3's have an RPO label/plate?

How can I tell if it still has it's original engine? Are block/head codes visable with engine installed? Thanks.

Last edited by Mikeceli; Feb 15, 2007 at 09:17 AM.
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Old Feb 15, 2007 | 09:50 AM
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72 LT-1's have an L instead of a K within the Vin #. Muddy
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Old Feb 15, 2007 | 11:25 AM
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As Muddy said, the vin tag will tell you if it was originally built as an LT-1 optioned Corvette.

Yes, the front engine pad is visible with the engine in place. You would be looking to see the assembly date with an engine suffix code of either CKY or CKZ, as well as the partial vin derivative. As far as whether it's original to the car or not, is not an easy task, get a knowledgeable individual to assist you in deciphering all the engine components to determine whether they appear to be the pieces installed at the factory.

Last edited by early shark; Feb 15, 2007 at 11:28 AM.
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Old Feb 15, 2007 | 12:20 PM
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although easily changed, LT1's would have finned aluminum valve covers.
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Old Feb 15, 2007 | 12:26 PM
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And don't go by the big block hood...it seems at least on the CF that's a mod folks add to their small block non LT1 cars.
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Old Feb 15, 2007 | 12:36 PM
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they also came with open element air cleaners, not dual snorkels, hirise aluminum intake and holly carb.
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