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ENGINE CASTING NUMBER

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I HAVE A 455 BUICK ENGINE CASTING NUMBER 1241735 I WAS TOLD THAT THIS ENGINE COULD BE A STAGE 1 ENGINE. THE ENGINE HAS CHROME ROCKER COVERS WITH A SER # 134 1232068 IT ALSO HAS POINTS AND IT LOOKS TO HAVE CAST IRON HEADERS CAN YOU HELP TK.

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The casting number does not specify it's a Stage motor. You need to look between spark plug 1 and 3. There you will find the engine serial number. The first to digits will be letters, these are the magic combination. If it's a '70 block they should be SS, a '71 should be TS, a '72 should be WS, and a '73 could be XS or XA.<P>------------------<BR>George C. Thomas<BR>70 GS 455 12.teens<BR>86 GN Low 13's/ high 12's

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The two digit engine code is found between the #5 and #7 spark plugs. The second letter should be an 'S' (at least for 1969-1972 models). You probable need to de-grease the engine to find the code stamping.<BR>According to <A HREF="http://www.atlantabuick.com/Heads.htm" TARGET=_blank>http://www.atlantabuick.com/Heads.htm</A> <BR>The block casting is 1972-1974.<P>Happy Thanksgiving!<P>------------------<BR>Marc Conigliari<BR>'70 Stage 1 Conv 4-speed<BR><A HREF="http://members.home.net/mconigliari/main.htm" TARGET=_blank>http://members.home.net/mconigliari/main.htm</A><p>[This message has been edited by Marc Conigliari (edited 11-23-2000).]

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Apologies, Marc is Correct!!!! Between 5 and 7 is the production code #'s. I attempted to use my memory, instead of going to the basement and looking. Sorry 'bout the confusion.<P>------------------<BR>George C. Thomas<BR>70 GS 455 12.teens<BR>86 GN Low 13's/ high 12's

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