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Old 08-03-2003, 04:30 AM
raymond raymond is offline
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Default Edd heads and ARP studs

Hi guys, anyone got any thoughts on head torque specs for a 360 with Edd heads and ARP studs, I had trouble finding the stud kit here [Australia] and I didn't get any paper work with it so I'm a bit in the dark.
I've been to the ARP web site, but there is only general info there and no mention of allum. heads.
Any input would be appreciated, thanks.
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Old 08-03-2003, 09:28 AM
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dwc43 dwc43 is offline
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95 ft lbs are the specs from the ones I got from ARP for my race engines. Also make sure you have the hardened washers for them or else it will chew up the heads and your day will be done.
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Old 08-04-2003, 03:36 AM
raymond raymond is offline
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Default Torque specs

Thanks for the info, are there different specs for iron heads or do the ally and iron heads both use the same torque?
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Old 08-04-2003, 12:16 PM
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dwc43 dwc43 is offline
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I think they use the same. Might contact Edel and ask them to be sure.
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Old 08-04-2003, 12:30 PM
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Default

Installation torque is not based on the head, but base on the bolt/stud. You need to properly preload the bolt/stud. The standard torque is about 65 ft-lbs for cylinder heads (for a 3/8" bolt). A 7/16" bolt needs 100 ft-lbs of torque, and some heads that have 1/2" would need 150 ft-lbs.

Like its mentioned before, since aftermarket heads are aluminum, you need to use a hardened washer under the bolt/nut.

All Edelbrock heads come with torque specs on the instruction sheet. Or, at least it should!
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