Guest Posted November 23, 2000 Share Posted November 23, 2000 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. Link to comment Share on other sites More sharing options...
Guest Posted November 23, 2000 Share Posted November 23, 2000 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 Link to comment Share on other sites More sharing options...
Guest 455stage1 Posted November 23, 2000 Share Posted November 23, 2000 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).] Link to comment Share on other sites More sharing options...
Guest Posted November 24, 2000 Share Posted November 24, 2000 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 Link to comment Share on other sites More sharing options...
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