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Old Mar 22, 2023 | 11:56 PM
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Default Engine not centered

Hello, I measured for engine center to mark on the hood for the hood cut out to install a carb mounted air scoop. I found that the center of the carb is not center to the center crease of the hood. It's out like 2 inches. This is my first C3 and I'm wondering if that the norm? Any info is appreciated.
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Old Mar 23, 2023 | 01:11 AM
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Yes that's normal, it offsets the drivers weight.
The diff is centered, the drive train is installed at an angle to the frames centerline.
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Old Mar 23, 2023 | 01:34 AM
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Really. First time I've ever wanted to pop a hole in the hood, so first time I've ever measured any car. So all the C3's I see with carb mounted scoops are off center? Crazy I've never noticed that.
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Old Mar 23, 2023 | 03:42 AM
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A carb mounted scoop on a C3. Well. Doesn't sound factory. But yes all C3's have the engine mounted to the right.
you may wish to mount your carb mounted scoop with a offset base so you can have it centered on the outside.
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Old Mar 23, 2023 | 06:00 AM
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Yes the engine is offset.....but the driveshaft is NOT angled to the differential. IF you look at the differential.....the driveshaft pinion is also offset to the right. It is irrelevant, unles of course you are doing what you are doing and cutting a hole in the hood. Chevy did not consider that since they didn't do that.
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Old Mar 23, 2023 | 11:30 AM
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Originally Posted by CorvettePassion
Yes the engine is offset.....but the driveshaft is NOT angled to the differential. IF you look at the differential.....the driveshaft pinion is also offset to the right. It is irrelevant, unles of course you are doing what you are doing and cutting a hole in the hood. Chevy did not consider that since they didn't do that.
I'd read that the the drive train was set at an angle. I tried to see it on my car but haven't tried to measure it.
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Old Mar 23, 2023 | 12:18 PM
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Completely normal
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Old Mar 23, 2023 | 01:11 PM
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Originally Posted by AKjeff
I'd read that the the drive train was set at an angle. I tried to see it on my car but haven't tried to measure it.
It is, the rear differential is centered
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Old Mar 23, 2023 | 01:42 PM
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Originally Posted by CorvettePassion
the driveshaft pinion is also offset to the right.
It's funny that you should mention that because Uncle Tony brought that up the other day on one of his videos. I don't know what goes on in the engineers head but I think it's also offset to the right to clear the steering box and shaft. Also to correct the center of gravity for some fatties.
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Old Mar 23, 2023 | 01:42 PM
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Went through a very complicated situation on my LS conversion, reason being the LS motor sits above the original motor's centerline for this car as well as offset to the right. During the ensuing discussion, I learned there were two possible compatible pairs of angles possible between the universals at either side of the driveshaft, thanks to a forum member. Not considered initially by me, I picked up a vibration because the input angle to the driveshaft differed considerably from the output angle. The alternative pair was called the "W-arrangement", which turned out to be the easier way to eliminate the vibration. Too bad there are all these "Photobucket" imprints, but that made pictures easier to post back then. Here you go:

https://www.corvetteforum.com/forums...t-angle-2.html
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Old Mar 23, 2023 | 06:47 PM
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Originally Posted by Fly skids up!
It's funny that you should mention that because Uncle Tony brought that up the other day on one of his videos. I don't know what goes on in the engineers head but I think it's also offset to the right to clear the steering box and shaft. Also to correct the center of gravity for some fatties.
I'm not that fat...my car just naturally leans to the left
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Old Mar 23, 2023 | 06:56 PM
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I am sure that the engine right side offset is to have more manual pedal room. We don't have much room down there. Lou.
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