TIII rods are TII rods with better rod bolts. If you use the TII rod you will have a weaker link in the chain(not too much weaker). What are your plans for the motor? IIWY, i would get arp rod bolts while I had them out and get a machine shop to resize them. my 2 cents
Posts by rx2mazda
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When you use new rod bolts you HAVE TO get them(the rods)re-sized by a machine shop. They should balance them while there are doing that if they are a good shop. DO NOT change the rod bolts and just put them to use, you will likely damage the crank/bearing. JUST FYI. Good luck!
Excatly! When you change rod bolts it can affect the "trueness" of the rod. resizing them puts them back to stock size and makes them "true"/perfect circle. That way, you have no problems when you put your new motor together. This should be a requirement, don't skip it. Also, it's inexpensive. A good machine shop will also balance the rods and pistons when they do this so make sure you take them your pistons also. If, you don't.......no biggie on the balancing for a 350hp motor:thumb:Resizing the rods makes them round and back to stock size.Your bearings will be fine.
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