Aluminum main cap tourqe?

I have a 400 Block with aluminum main caps with ARP studs.

What is the torque spec on the mains with ARP studs and aluminum caps?

I was told 110lb but when I checked clearances they are way too tight at 110lbs. as tight as .0015 on a couple of the mains.

Backed it off to the 85lb factory spec and they are better at .0025 to .003 so something is going on.

The torque values are for the studs or bolts you are using. Thats what you need to go by. If your to tight Fully torqed to specs then you will need a line hone with said caps installed to the proper fasteners torque values. You dont back off torque to get more clearence.

i guess this isn't much help but they should be torqued to the spec that was used when the main bore was finished, hopefully they used the correct torque whatever that was supposed to be. the lubricant used during torquing has a big effect as well. ARP lists those studs as 200k tensile, they list default torque specs as 122/95 for 190K studs and 135/105 for 220K studs. upper numbers with 30wt, lower numbers with moly

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The torque values are for the studs or bolts you are using. Thats what you need to go by. If your to tight Fully torqed to specs then you will need a line hone with said caps installed to the proper fasteners torque values. You dont back off torque to get more clearence.

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So true.............a buddy of mine was assemblng a 350 chevy(poor soul )and the crank wouldn`t turn torqued to spec so he loosened the mains till it did then drove it and needless to say, it grenaded..........line hone is your friend here.