Need help on eng vin - Chevelle Tech
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post #1 of 14 (permalink) Old Oct 12th, 10, 11:46 AM Thread Starter
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tom
 
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Need help on eng vin

hey guys i need some help here i have a bb 454 i was told was in my 74 laguna s-3 but not the original engine vin doesn't match the vin on the car the # on the block left side just under the head reads C41126663 any idea what this is i know the 666 is a devil block- lol- it runs like a devil thats for sure

1974 laguna 454 4spd
1969 buick gs 400 4spd
1969 nova ss 350 auto
1970 monte carlo 402 auto
1972 monte carlo 350 auto
some junk------------
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post #2 of 14 (permalink) Old Oct 12th, 10, 12:28 PM Thread Starter
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tom
 
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Decode this

eng block #C41126663 what the heck is this ?

1974 laguna 454 4spd
1969 buick gs 400 4spd
1969 nova ss 350 auto
1970 monte carlo 402 auto
1972 monte carlo 350 auto
some junk------------
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post #3 of 14 (permalink) Old Oct 12th, 10, 1:09 PM
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Re: Decode this

Partial VIN
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post #4 of 14 (permalink) Old Oct 12th, 10, 3:05 PM
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Ethan
 
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Re: Decode this

Quote:
Originally Posted by Mike View Post
Partial VIN

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post #5 of 14 (permalink) Old Oct 12th, 10, 4:57 PM
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Keith
 
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Re: Need help on eng vin

a quick search on the web shows that the "C" is the South Gate Assembly plant in South Gate CA. where they made full size GM cars in 1974. so that is vin number from a full size GM car in 1974. what are the rest of the numbers

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post #6 of 14 (permalink) Old Oct 12th, 10, 5:02 PM
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Mike
 
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Re: Need help on eng vin

Actually the C denotes the Chevrolet Truck Division. This engine came from a 1974 Chevy truck built in Oshawa Ontario Canada.

C - Chevrolet Truck
4 - 1974 model year
1 - Oshawa plant code
126663 - last 6 digits of the trucks vin
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post #7 of 14 (permalink) Old Oct 12th, 10, 5:25 PM
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Re: Need help on eng vin

Quote:
Originally Posted by elcamino View Post
Actually the C denotes the Chevrolet Truck Division. This engine came from a 1974 Chevy truck built in Oshawa Ontario Canada.

C - Chevrolet Truck
4 - 1974 model year
1 - Oshawa plant code
126663 - last 6 digits of the trucks vin
sorry I was thinking that the C was the plant code. it did make sense

1966 Chevelle SS 396/360 M21 3:73 posi. silver/blue buckets

Maryland Chevelle Club #682
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post #8 of 14 (permalink) Old Oct 12th, 10, 5:39 PM
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Ethan
 
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Re: Need help on eng vin

Quote:
Originally Posted by elcamino View Post
Actually the C denotes the Chevrolet Truck Division. This engine came from a 1974 Chevy truck built in Oshawa Ontario Canada.

C - Chevrolet Truck
4 - 1974 model year
1 - Oshawa plant code
126663 - last 6 digits of the trucks vin


Quote:
Position 1: Division Identification
Always 1 for Chevrolet
(2 = Pontiac, 3 = Oldsmobile, 4 = Buick, 5 = GM Overseas, 6 = Cadillac, 7 = GM of Canada
9 = GM Overseas, C = Chevy Truck, T = GMC Truck)

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post #9 of 14 (permalink) Old Oct 12th, 10, 8:06 PM Thread Starter
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tom
 
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eng block vin C41126663 ?

what is this C41126663 ? any idea what this is 454 396 ? cant find it any where !

1974 laguna 454 4spd
1969 buick gs 400 4spd
1969 nova ss 350 auto
1970 monte carlo 402 auto
1972 monte carlo 350 auto
some junk------------
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post #10 of 14 (permalink) Old Oct 12th, 10, 9:52 PM
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Ethan
 
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Re: eng block vin C41126663 ?

Quote:
Originally Posted by tmason View Post
what is this C41126663 ? any idea what this is 454 396 ? cant find it any where !
Check your post in the Tag Team forum.

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post #11 of 14 (permalink) Old Oct 12th, 10, 10:02 PM
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Re: Need help on eng vin

Tom, please do not post the same thing more than one time, it is too confusing.

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post #12 of 14 (permalink) Old Oct 13th, 10, 10:47 AM Thread Starter
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Re: Need help on eng vin

Quote:
Originally Posted by Dean View Post
Tom, please do not post the same thing more than one time, it is too confusing.
thanks guys will do or in this case wont do it again {only post once }

1974 laguna 454 4spd
1969 buick gs 400 4spd
1969 nova ss 350 auto
1970 monte carlo 402 auto
1972 monte carlo 350 auto
some junk------------
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post #13 of 14 (permalink) Old Oct 23rd, 10, 5:14 PM Thread Starter
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tom
 
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Re: Need help on eng vin

is this block a 454 or a 427 ??

1974 laguna 454 4spd
1969 buick gs 400 4spd
1969 nova ss 350 auto
1970 monte carlo 402 auto
1972 monte carlo 350 auto
some junk------------
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post #14 of 14 (permalink) Old Oct 23rd, 10, 5:22 PM
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Re: Need help on eng vin

There was no 427 in 1974 except for the tall deck which this isn't.
Kinda narrows it down to the 454.
But since both the 427 and 454 use the same bore ,the difference ,besides casting number/date, is the crank stroke and the piston pin height.
You can make either from that block -427 -454 or any of the over bored or stroked variants.
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