Sören Posted July 6, 2014 Report Share Posted July 6, 2014 In my Shop Manual under "Engine Mechanical - Cylinder Head Installation" they write155 foot-pounds. In the same manual, under "Torque Specifications - Cylinder Head to Cylinder Block Screw" the write 115 ft. lbs. Are not foot-Pounds and ft. lbs the same? What torque should I use? Link to comment Share on other sites More sharing options...
Texas Jim Posted July 6, 2014 Report Share Posted July 6, 2014 Yes...foot-Pounds and ft. lbs are the same thing. I do not know the correct torque value. Link to comment Share on other sites More sharing options...
Cadillac Jim Posted July 6, 2014 Report Share Posted July 6, 2014 I think 155 lb-ft is an enormous torque for a head bolt. I think it's a typo and the right torque is 115 lb-ft, but I don't have anything in easy reach that has torque ratings on the 472. I do have Chiltons that go back to 1941 but not handy. Any one else? -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
Cadillac Jim Posted July 6, 2014 Report Share Posted July 6, 2014 I did a quick web search and turned up this: http://www.cad500parts.com/catalog/page4.htm They list the head bolt torque as 115 lb-ft for all the big-block Cadillacs, 472 and later. They also say to look at the docs that come with the parts, so if you are buying new head bolts, a recommendation should come with them. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
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