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 65 Riv GS engine production code stamp

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skypilot
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Name : Jack
Joined : 2018-11-30
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PostSubject: 65 Riv GS engine production code stamp   Fri Nov 30, 2018 9:21 am

I am about to purchase my first 65 Riviera GS. The engine production code is stamped L X167. The L is over 2 inches from the X. Does anyone know if this is normal or fake stamping.

Jack
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LARRY70GS
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Name : Larry
Age : 62
Location : Oakland Gardens, NY
Joined : 2007-01-23
Post Count : 1590
Merit : 109

PostSubject: Re: 65 Riv GS engine production code stamp   Fri Nov 30, 2018 1:31 pm

I would say that is most likely normal. I know the 67-76 350 and 400/430/455 engine codes were like that. The letters were stamped separately, not together. LX is a 425 CID. More info below.


https://www.teambuick.com/reference/nailhead_425_identification.php

This is a 1971 Buick 350 with code TD

http://www.v8buick.com/index.php?attachments/7-30-2018-10-10-39-am-jpg.398326/

See how far apart they are? Sometimes, the letter(s) are partially obscured by the head or gasket.

Join over at www.v8buick.com Lots of great info and knowledge over there.

_________________
98 Riviera SC3800  All stock except gutted air box.
1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ
Best MPH, 116.06 MPH, Best ET, 11.54
https://www.youtube.com/watch?v=UHCda-t_Jls
https://www.youtube.com/watch?v=sfT2tEO4XcU
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skypilot
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Name : Jack
Joined : 2018-11-30
Post Count : 2
Merit : 0

PostSubject: Re: 65 Riv GS engine production code stamp   Fri Nov 30, 2018 4:06 pm

The
Most confusing is the L is over two inches away from the X167. The L is not a clear crisp stamp like the others. It would be helpful if I could include a photo. Also on this 65 are the 2 carbs with a metal sticker on each throat that reads Carter Competition. Look on the side of the carb and raised factory letters read WEBER, so its not an original Carter carb.

I also need to measure the exhaust pipe dia. to help determine if its was original GS. It does have the Gran Sport emblems in the right ( early production ) location and on the glove box.
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LARRY70GS
Aficionado
avatar

Name : Larry
Age : 62
Location : Oakland Gardens, NY
Joined : 2007-01-23
Post Count : 1590
Merit : 109

PostSubject: Re: 65 Riv GS engine production code stamp   Fri Nov 30, 2018 4:40 pm

Go over to www.v8buick.com and join. The guys over there in the Nailhead Forum can answer your questions better than I.

_________________
98 Riviera SC3800  All stock except gutted air box.
1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ
Best MPH, 116.06 MPH, Best ET, 11.54
https://www.youtube.com/watch?v=UHCda-t_Jls
https://www.youtube.com/watch?v=sfT2tEO4XcU
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