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Mopar P4120068 rod bolt set?

Posted By: polkat

Mopar P4120068 rod bolt set? - 09/18/10 05:03 AM

Just bought a set of these and now I'm hearing that there are some failure reports. Dang! They will be going into a mostly stock 440 that will see 90% street duty and a little weekend racing...never above maybe 5000rpm. They must be at least a little better then stock bolts...no? Any comments?
Posted By: Chris2581

Re: Mopar P4120068 rod bolt set? - 09/18/10 05:21 AM

Suposedly...there was a bad batch of them many years ago.Almost 10 years ago at least.Can't say for sure.I think IMHO,that in your application they will be fine.
Posted By: calrobb2000

Re: Mopar P4120068 rod bolt set? - 09/18/10 05:22 AM

hi
i have used them with no problems at 6500 rpm
may times .

however i always look over the nuts very carefully with a magnifying glass as i did get one set once that had cracks lengthwise in the nuts , prob a problem with bad heat treating procses ?
Posted By: CrAzYMoPaRGuY

Re: Mopar P4120068 rod bolt set? - 09/18/10 05:25 AM

I've used them numerous times over the years, never had a problem ever, and I run the engines up to the valve float limiter many a times too...


I heard years ago of many ARP rod bolt failures, it makes me wonder where the stories come from to be truthful....
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