ARP Rod Bolt Roll Call
07-15-2010, 05:48 PM
#51
TECH Fanatic
iTrader: (38)
In my 4.8 I carefully removed one bolt at a time. I spun my motor daily 7500 Tom's and hit the 7800 rpm limiter plenty of times. That was pushing 800 rwhp in a 4800lb truck. Motor was an 02. I tore it down and bearings looked new. No signs of distortion. I did the torque to 45lbs 3 times method
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07-15-2010, 10:29 PM
#52
TECH Veteran
I didn't read all of the pages yet so hopefully I'm not going back over something someone else wrote. When replacing the stock bolts and not checking the rods I've only used the Katech. All of the aftermarket rods I've used have had the ARP bolts in them. My only thought to this is that they really aren't needed in a 2001 and newer stock rod. The rod bolts were upgraded from GM for 01' and the problem bolts were no longer used. I've spun the 01' and up motors to 7200 or so many times over. Tomorrow I'll be dyno tuning an LS2 we just put a cam in and I'll be spinning to that 7k or so while tuning it without even thinking twice about it. Unless you plan to regularly go past 7k with it I'd just use the stock rod bolts. If you plan to really twist it $200 for rod bolts are cheap compared to the rest of the build. My recomendation would be to just leave the stock bolts in there.
07-15-2010, 11:06 PM
#53
I can understand why you would think that a 6.125” rod is the stock length as it is the common length aftermarket rod that just about everyone goes to for most builds that you see. However, the 6.098” rod is the stock length in all the LS style motors except the 4.8L at 6.275” and the LS7 which has 6.067” length rods. In some literature the standard rod length will be listed as 6.100”, but this is slightly off.
07-16-2010, 11:18 AM
#54
I didn't read all of the pages yet so hopefully I'm not going back over something someone else wrote. When replacing the stock bolts and not checking the rods I've only used the Katech. All of the aftermarket rods I've used have had the ARP bolts in them. My only thought to this is that they really aren't needed in a 2001 and newer stock rod. The rod bolts were upgraded from GM for 01' and the problem bolts were no longer used. I've spun the 01' and up motors to 7200 or so many times over. Tomorrow I'll be dyno tuning an LS2 we just put a cam in and I'll be spinning to that 7k or so while tuning it without even thinking twice about it. Unless you plan to regularly go past 7k with it I'd just use the stock rod bolts. If you plan to really twist it $200 for rod bolts are cheap compared to the rest of the build. My recomendation would be to just leave the stock bolts in there.
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