ARP rod bolts & resizing the rods.
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ARP rod bolts & resizing the rods.
I ordered some ARP rod bolts & I thought I could just use them in place of the stock ones & resizing wasn't necessary because the LS uses "cracked type rods" Does anyone know for sure if it's necessary? To be honest, I'm not even sure what resizing is, or what it takes to do it.
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To resize a cracked cap rod, you hone the big end over .002 and use a special bearing. The bearing part number is clevite 1776p IIRC. I checked my 2008 LY6 rods after installing the bolts and they were a little out of round, so we had them resized. At the very least I would install the bolts and have a machine shop check the big end. Hope this helps, Eric L
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Depends who you ask, some say the 8740 arp replacement is direct drop in, others say measure, and some say resize. Personally i just installed them and the motor has seen multiple track passes shifting at 7200rpm all day.
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also they dont carry katech.. i havent checked jegs yet
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Yes, 134-6006. I have plenty in stock; we always check them in our machine shop. Sometimes they drop in and other times they need sizing, my personal opinion is Kaltech or ARP or any other brand, always check no matter what the manufacturer claims.
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Thanks to all that responded. I ended up getting the ARP pro series rod bolts p/n 234-6301 And gave them to the machine shop to resize them. Not sure if it really needed them, but it gives me a little piece of mind! I read that the pro sreies had 220,000 lbs of tensil strength & the stock replacement (134-6006) have 190,000 lbs, not sure if that makes any differnce for my application, but they were only a few bucks more.
Last edited by tommy396; 06-24-2012 at 07:13 PM. Reason: adding info
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Hey Cartel, I'm not sure yet, I dropped the pistons & rods off at the machine shop on Fri & left town til Wed. He said that even if he had to resize all of them it would be a max of 2 hrs labor. plus the bearings. I'll let you know exactly what it cost me when I pick them up Wed night.
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Hey Cartel, I'm not sure yet, I dropped the pistons & rods off at the machine shop on Fri & left town til Wed. He said that even if he had to resize all of them it would be a max of 2 hrs labor. plus the bearings. I'll let you know exactly what it cost me when I pick them up Wed night.