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? Quote 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. Quote 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? Quote -- 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. Quote -- 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...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.