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

Early or late 93?

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Old Feb 27, 2002 | 02:32 PM
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Default Early or late 93?

What is the easiest way to determine if my 93 is "Early" or "Late"? I thought I read somewhere that the serpentine belt will tell you. It is either ribbed on both sides or only one side. But which is which? And is there any other way to tell? Thanks in advance! :flag
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Old Feb 27, 2002 | 02:51 PM
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Default Re: Early or late 93? (white93vette)

Well, let's put it this way, my '92 has the belt ribbed on both sides, so I would assume that if it was changed, it would be in the latter half of the '93 production.
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Old Feb 27, 2002 | 02:59 PM
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Default Re: Early or late 93? (white93vette)

I was told by someone on the Forum that is you have foam on the inside of the back bumper you have a late 93
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Old Feb 27, 2002 | 03:24 PM
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Default Re: Early or late 93? (Jim D)

well your VIN is a start
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Old Feb 27, 2002 | 04:30 PM
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Default Re: Early or late 93? (vader86)

well your VIN is a start
:yesnod: :yesnod: :D
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Old Feb 27, 2002 | 04:31 PM
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Default Re: Early or late 93? (vader86)

The best way to tell is if it has the newer electronic trans. If it has a throttle pressure cable it is early. My car has all the other late stuff, but an early trans. Must have been mix and match day when mine was made. :lol:
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Old Feb 27, 2002 | 04:51 PM
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Default Re: Early or late 93? (white93vette)

Early 93's have a black honeycomb pattern absober and Late 93's have white styrofoam. :)
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Old Feb 27, 2002 | 04:53 PM
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Default Re: Early or late 93? (ehn84)

Behind the bumper that is!
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Old Feb 27, 2002 | 04:56 PM
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Default Re: Early or late 93? (ehn84)

On mine, the production date is on a sticker inside the door jam. I believe the later models had the styrofoam bumper insert as well as the belt that is only grooved on one side. The 93 never had the electronic transmission.
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Old Feb 27, 2002 | 06:32 PM
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Default Re: Early or late 93? (vader86)

well your VIN is a start
Yeah, that's what I thought too. But where do the numbers seperate "early" from "late"?
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Old Feb 27, 2002 | 06:35 PM
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Default Re: Early or late 93? (white93vette)

well if you post it here, we can usually tell, somebody knows the whereabouts of the magic number that separates them.
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Old Feb 27, 2002 | 10:02 PM
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Default Re: Early or late 93? (vader86)

Well to generalize, the serial # starts at 100001 and ends at 121142, so it will help you narrow it down. Mine has a build date of July 93, and my # is 120910, so it's safe to say that mine is a late one.
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Old Feb 27, 2002 | 10:58 PM
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Default Re: Early or late 93? (Red 86 4+3)

On mine, the production date is on a sticker inside the door jam.
:yesnod:
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Old Mar 1, 2002 | 04:44 AM
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Default Re: Early or late 93? (thrills)

On my 93 the belt is ribbed on both sides, my car was manufactured may 93. I know they did change to ribbed belt only on one side later.

B
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