3/8 grade 8 fasteners need a hair more than 30 ft/lbs IMO.
I would torque them to 38-40 ft/lbs. A lbs or two either way should hurt it. But to work properly they need the pre load and stretch some..
That fastener should be very similar to a rod bolt. Both are 3/8 and fine thread also, not that makes a huge diff.


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[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]