Cadillac engine knowledge

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Identification info gleaned from a dozen books / manuals plus personal experience:
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Identification:
Block casting # (rear of block, behind intake, near oil pressure switch):
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'68-'69 472: 1486238
 
'68-'69 472: 1486238
 
'70-'76 472 & 500: 1485200
 
'70-'76 472 & 500: 1485200
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'80-'85 368: 1615188, others I don't know. The 4-6-8 head is substantially different than the regular head, and the rocker assemblies are not directly interchangeable.
 
'80-'85 368: 1615188, others I don't know. The 4-6-8 head is substantially different than the regular head, and the rocker assemblies are not directly interchangeable.
  
A fairly comprehensive 2 page PDF ID guide with pictures can be found here:  
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For Quick ID - on the second page, there is a box shape shown on the rear of the '77-later blocks to ID the smaller engines. Distinguishing a '70-newer 472 from a 500 can only be done by crank number, stroke, or piston design, as all other parts are the same.
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A fairly comprehensive 2 page PDF ID guide with pictures can be found here (mostly about the 472/500 stuff):  
 
http://www.cad500parts.com/tech/EngineIDPages.pdf
 
http://www.cad500parts.com/tech/EngineIDPages.pdf
  

Revision as of 15:28, 28 November 2008

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