Header Bolt torque
06-14-2006, 11:44 PM
#11
VIP Member
Re: Header Bolt torque
The header and intake are 3/8 which most say 35 TQ. Just back off then retouqe.Just remember that the hardware store bolt might be a lower grade even being a garde 5 compared to a name brand bolt.On the chart See the 170-180-psi bolt will be a lot stronger bolt than the hardware bolt.
http://www.arp-bolts.com/Catalog/Catalog.html
If a bolt has the correct strech it will not need a lock washer
http://www.arp-bolts.com/Tech/Tech.html
http://www.arp-bolts.com/Catalog/Catalog.html
If a bolt has the correct strech it will not need a lock washer
http://www.arp-bolts.com/Tech/Tech.html
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The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
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The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
06-15-2006, 10:05 AM
#13
Geronimo36
Gold Member
Re: Header Bolt torque
Have used stainless bolts on aluminum manifolds and headers for years, never any problems.
I saw a lot of problems with rust on boats that had steel bolts. Most of the time the heads would rust out and you had to hammer a smaller socket on it or a 12 pt. metric socket if you were lucky. In one instance I had to use a sledge hammer to break the manifold so we could get it out.
I saw a lot of problems with rust on boats that had steel bolts. Most of the time the heads would rust out and you had to hammer a smaller socket on it or a 12 pt. metric socket if you were lucky. In one instance I had to use a sledge hammer to break the manifold so we could get it out.
06-16-2006, 01:20 AM
#14
Re: Header Bolt torque
Another huge load of B.S.
Use the ARP Stainless Bolts for headers. When you really get used to fasteners you get a feel for them and thier particular application ,(it's not a head gasket ) and understand their limits as well, if not then you haven't done enough motors.
Have had good luck with the 5/16 headed ARP 3/8 - 16 header bolts. After running and warming up, a good re- tightening is all they need.
You need a 3/8 " Drive ,deep socket that is necked down for for them and a normal 3/8 ratchet tightened to max with one hand.
With the CMI headers I have used these as described and have had no problems in 2 years with 4 motors.
Another thing is to coat the gaskets with anti-sieze compound before install. Believe it or not they really do work well. Try it on a carb gasket too.
Make 'em tight and even , it's childs play... BBB
Use the ARP Stainless Bolts for headers. When you really get used to fasteners you get a feel for them and thier particular application ,(it's not a head gasket ) and understand their limits as well, if not then you haven't done enough motors.
Have had good luck with the 5/16 headed ARP 3/8 - 16 header bolts. After running and warming up, a good re- tightening is all they need.
You need a 3/8 " Drive ,deep socket that is necked down for for them and a normal 3/8 ratchet tightened to max with one hand.
With the CMI headers I have used these as described and have had no problems in 2 years with 4 motors.
Another thing is to coat the gaskets with anti-sieze compound before install. Believe it or not they really do work well. Try it on a carb gasket too.
Make 'em tight and even , it's childs play... BBB
06-18-2006, 11:29 PM
#15
Charter Member # 55
Charter Member
Re: Header Bolt torque
Originally Posted by customryder
Dean Gellner Engineering recommends using a stud with a nut.. that way you have two forces of keeping the header tight.
06-19-2006, 08:47 AM
#16
Re: Header Bolt torque
http://store.summitracing.com/partde...5&autoview=sku
Check these out they are available from Jegs too.
Check these out they are available from Jegs too.
