A couple ARP fastener questions
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A couple ARP fastener questions
I have the part number for the ARP connecting rod bolts but I am unsure of the part number for the mains with a stock girdle? Do you use the studs or bolts and do you need a washer between the main and the girdle to space it up for the longer stroke?
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Re: A couple ARP fastener questions
There is no ARP bolt or stud that will work with the main girdle.
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Re: A couple ARP fastener questions
Do the 4.0 rods interfere with the girdle with the longer stroke crank? If I cant use the girdle anyway I could at least have some insurance with the better arp stud setup. Thanks for all the advice.
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Re: A couple ARP fastener questions
The rods will interfere. However, spacing the girdle about 1/8" with washers will allow ample clearance. Skip the ARP hardware here. There is really no need for it in this area.
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Re: A couple ARP fastener questions
What about head bolts? Last question about bolts I swear.
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Re: A couple ARP fastener questions
I run the ARP head bolt set (not stud) just because I wasn't impressed with the quality of the stock replacements. Plus they are reusable.
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Re: A couple ARP fastener questions
So ARP main studs only work for 95 and older?
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Re: A couple ARP fastener questions
The studs will work for all 4.0L engines, but the main girdle will need the holes enlarged too much to use the girdle on the later engines.
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Re: A couple ARP fastener questions
But what about buying a girdle from eBay for a 91?
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Re: A couple ARP fastener questions
Same thing, you will need to enlarge the holes on the girdle for the studs.
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Re: A couple ARP fastener questions
But why are you saying the holes are being enlarged too much for later engines? Do you run out of material?
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Re: A couple ARP fastener questions
You need to understand that the main bearing BOLTS on the late model engine has a small stud sticking up from them for the main girdle. The stud is a smaller diameter than the bolt. If you got main bearing STUDS, the diameter is too large to use with a girdle. So yes, there isn't enough material to enlarge the holes on the girdle to work with main bearing STUDS.
Sorry for the caplock,,but I wanted to emphasize the difference between the two for ya.
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Re: A couple ARP fastener questions
No issue, it made the point much more clear.
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