Arp rod bolts ???
10-27-2012, 06:13 AM
#2
Are you suppose to? YES
Do you have to? NO
I did a lot of searching on this subject. IMO it depends on which arp rod bolts they have the lowest level which are like factory replacements. I think most guys do okay with out resizing them. You also have the PRO series I believe its called they should be re sized for sure.
btw you can not resize they rods they have to be bored to fit a oversized bearing...
Do you have to? NO
I did a lot of searching on this subject. IMO it depends on which arp rod bolts they have the lowest level which are like factory replacements. I think most guys do okay with out resizing them. You also have the PRO series I believe its called they should be re sized for sure.
btw you can not resize they rods they have to be bored to fit a oversized bearing...
10-27-2012, 08:18 AM
#5
No bolt is an absolute sure thing as far as not having to resize the rod goes. Many folks have gotten away with swapping out stock bolts with Katech and the ARP fasteners and run em like they stole em. On the other hand there are cases where motors had issues or folks measured parts after installing X fastener and noted it was out of tolerance, so there is really only one correct answer here. The rods should always inspected when fasteners are changed is the most correct answer here. If you want to try swapping the bolts in the motor without inspecting the rods then by all means go for it. Just keep in mind your taking a measured chance. I think the ARP bolt typically used is the cheaper set which is around $90 or so.
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10-27-2012, 09:58 PM
#10
DO NOT RUN ARP ROD BOLTS ON A STOCK BOTTOM END YOU WILL SPIN A BEARING THERE ARE COUNTLESS THREADS ON IT, DO NOT DO IT.
On the other hand, the Katech's which are stock replacements (size, weight, etc. etc.) work fine if installed properly. My buddy and I both replaced ours this summer when tearing our motors apart and have had no issues.
On the other hand, the Katech's which are stock replacements (size, weight, etc. etc.) work fine if installed properly. My buddy and I both replaced ours this summer when tearing our motors apart and have had no issues.
10-27-2012, 11:26 PM
#11
DO NOT RUN ARP ROD BOLTS ON A STOCK BOTTOM END YOU WILL SPIN A BEARING THERE ARE COUNTLESS THREADS ON IT, DO NOT DO IT.
On the other hand, the Katech's which are stock replacements (size, weight, etc. etc.) work fine if installed properly. My buddy and I both replaced ours this summer when tearing our motors apart and have had no issues.
On the other hand, the Katech's which are stock replacements (size, weight, etc. etc.) work fine if installed properly. My buddy and I both replaced ours this summer when tearing our motors apart and have had no issues.
10-27-2012, 11:42 PM
#12
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I think all of this begs the following question; If you have to pull the rods to have them re-sized, why stay with stock rods when an aftermarket set with ARP 2000 bolts can be had for relatively low $$ ?
10-28-2012, 05:37 AM
#13
DO NOT RUN ARP ROD BOLTS ON A STOCK BOTTOM END YOU WILL SPIN A BEARING THERE ARE COUNTLESS THREADS ON IT, DO NOT DO IT.
E
On the other hand, the Katech's which are stock replacements (size, weight, etc. etc.) work fine if installed properly. My buddy and I both replaced ours this summer when tearing our motors apart and have had no issues.
E
On the other hand, the Katech's which are stock replacements (size, weight, etc. etc.) work fine if installed properly. My buddy and I both replaced ours this summer when tearing our motors apart and have had no issues.
10-28-2012, 08:08 AM
#14
It is cheaper to redo stock rods vs aftermarkets by quite a bit depending on your machine shop rates. Around here machine shops charge about $250 to resize a set of rods, but others have paid closer to $100. Depends on what your local economy is like and what the going rate is. The shops around here charge $80+ and hour so you get the idea. Not to mention on occasion you can even get a brand new rod that is OOR even the best of them (shouldn't just be slapping stuff together without checking). So OOR is not just confined to LS rods with ARP/Katech hardware. Wouldn't it be a bitch to have to resize a set of new rods? It happens on occasion.
Maybe the person is planning on just a quick rehone and is refreshing the motor with the original slugs and wanted to add some insurance. Stock rod bolts are really the only weak spot in these motors if your running NA.
Maybe they are racing it in a sanctioned racing body (drag racing, circle track, dirt track, or road racing) and it is spelled out in their rules they have to run factory rod and piston assemblies.
So plenty of good reasons really
