clarify 302 main cap torque specs - Vintage Mustang Forums
 
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post #1 of 3 (permalink) Old 07-14-2012, 09:12 AM Thread Starter
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clarify 302 main cap torque specs

So I am replacing the rear main on a stock 83 302. It is on a stand, nothing special (no stroker etc) I see torq specs are 70, but 40 for the "outer mains" So I assume that is the first and last cap, with the center caps at 70, using 30 wgt oil on the threads. IIRC all other motors I messed with or rebuilt used the same specs across all the mains. (granted I am not a mechanic, so its not like I have built hundreds of motors- more like 5 or so) So in my limited knowledge this seemed a little odd, and I wanted the VMF's knowledge here, as I am aware of what the result is for over/undertorquing main caps.
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post #2 of 3 (permalink) Old 07-14-2012, 05:38 PM
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Outer usually means the outer bolts on a four bolt main cap, from my experience.

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post #3 of 3 (permalink) Old 07-14-2012, 06:22 PM
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Quote:
Originally Posted by ScottsGT View Post
Outer usually means the outer bolts on a four bolt main cap, from my experience.
Scott is correct. All the main bolts on the stock 302 block are 70 ft./lbs torque.
Only difference would be ARP bolts or studs, then refer to ARP's recommended torque specs.
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