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hoozeyurdaddy 04-18-2009 07:38 PM

torque specs
 
where can I find or who knows the torque for alum. heads with arp bolts, and the torque on the alum. intake manifold.
Thanks
Larry

BillK 04-18-2009 08:00 PM

Larry,
With ARP's fasteners you really have to use the torque that they specify, along with the proper sealer or lubricant depending on whether your block has blind head bolt holes or if they go through to water. If you dont have the instruction sheet that came with the bolts, then wait till Monday and call ARP.

Bill Koustenis
Advanced Automotive Machine
Waldorf Md

Strip Poker 388 04-19-2009 02:18 AM

Intake 40 on steel with stainless bolt pulled out on me:eek:

I'm back to 35,with ARP stainless 12pt wilth arp sealer I would think the alum prob be the same ,same clamping force on the gasket?Usually they want ya at 80% of yield strength


stock bolts
My Chevrolet service manual states 80 ft. lbs. for iron heads and
65 ft. lbs. short bolts / 75 ft. lbs. long bolts for aluminum heads

hoozeyurdaddy 04-19-2009 10:34 AM

Thanks for the info: I will call ARP on Monday
Larry


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