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Lt1 ???

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Old Nov 28, 2012 | 10:05 PM
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Default Lt1 ???

I have a 1971 convertible and I noticed that it has what I understand is a LT1 tachometer. Are there other things to look for that are less noticeable I can check out? I'm not sure if one of the hoods I have is the car original hood and I know the motor is not the original but what else might be looked for to tell if it was ever a LT1? Here's the tach picture, can you see the 6500 red line.
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Old Nov 28, 2012 | 10:39 PM
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Originally Posted by johnnyw
I have a 1971 convertible and I noticed that it has what I understand is a LT1 tachometer. Are there other things to look for that are less noticeable I can check out? I'm not sure if one of the hoods I have is the car original hood and I know the motor is not the original but what else might be looked for to tell if it was ever a LT1? Here's the tach picture, can you see the 6500 red line.
That would help explain your copper radiator and lack of an expansion tank.
Base engine 350 w/4sp had an alum radiator w/expansion tank.
LT-1 came with copper (automatic style) radiator an no external expansion tank on the fender.
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Old Nov 28, 2012 | 10:55 PM
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I'm not even sure if the radiator is original, it is fun trying to decipher this cars history though.
Thank you for the info!
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Old Nov 29, 2012 | 09:56 AM
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What is the rear axle ratio? Most LT-1 cars were geared at 3.70 : 1. Tank sticker would be another indicator.
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Old Nov 29, 2012 | 10:30 AM
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What data is on your shifter console plate?
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Old Nov 29, 2012 | 10:31 AM
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Transistor ignition?
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Old Nov 29, 2012 | 12:39 PM
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An LT-1 without the LT-1 is not an LT-1.

Do the Google thing. There's been enough written about LT-1s to put together exactly what the options package required. Once you know that, you can start looking for the tell-tale parts.

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Old Nov 29, 2012 | 01:13 PM
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Here is a post from when I was buying mine. There is a good list on the second page.


http://forums.corvetteforum.com/c3-g...ting-tips.html

Last edited by Crafty12; Nov 29, 2012 at 01:13 PM. Reason: forgot the link
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