torque on alum heads
Thread Starter
Drifting
Joined: Jun 2000
Posts: 1,476
Likes: 1
From: Mt Juliet TN
torque on alum heads
Anybody know what torque setting I should use for my edelbrock aluminum haeds. I can't seem to find any actual numbers in any of my books. Any help would be appreciated.
Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Bolt torq is listed on this spec page, looks to be either 65 or 70 depending on the head. Do it in stages although it does not state it, follow any of the head bolt tightening pattern diagrams for SBC, should be all the same.
http://edelbrock.com/automotive/head_flownumbers2.html
http://edelbrock.com/automotive/head_flownumbers2.html
Race Director
Joined: Jun 2000
Posts: 10,040
Likes: 672
From: FL
Did Edelbrock not give you instructions? I have the PDF for the small block RPM's at home or you can get it from their website. I do believe that Grayhook is right off the top of my head. 35-50-65
Thread Starter
Drifting
Joined: Jun 2000
Posts: 1,476
Likes: 1
From: Mt Juliet TN
Originally Posted by SteveG75
Did Edelbrock not give you instructions?
Last edited by TTop Tony; Nov 23, 2004 at 04:24 PM.
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Melting Slicks
Joined: Jun 2001
Posts: 2,429
Likes: 14
From: CA
Felpro has some good advice:
http://www.federal-mogul.com/cda/con...9_7465,00.html
There is also an alternate procedure to retorque after they have been fully torqued down. You go back to bolt 1 & loosen it to zero torque, then pull it back up to full torque in one smooth movement. Continue this on all of the bolts. This helps lessen the side pulling of the gasket, and it's also the procedure if it's not possible to re-torque after the initial runup. I did that procedure.
http://www.federal-mogul.com/cda/con...9_7465,00.html
There is also an alternate procedure to retorque after they have been fully torqued down. You go back to bolt 1 & loosen it to zero torque, then pull it back up to full torque in one smooth movement. Continue this on all of the bolts. This helps lessen the side pulling of the gasket, and it's also the procedure if it's not possible to re-torque after the initial runup. I did that procedure.