jtjyoung

dose any body know if the rods need to be resized after arp rod bolts are in stalled thanks for any input

RoDan

no, they dont

NEMESISVETTE

iTrader: (2)

no need. I run arp rod bolts. 15000 miles now on stock rods

oz304

as far as i'm concerned ive had more dramas resizing rods unduly (where some apprentice f'ks em)rather than just fitting new fasteners on used but within resonable tolerance rods,yet i have had not a single failure on factory,holden,chev+ford conrods by fitting new rod bolts on existing rods right up to 8000+ rpm,i used arp too of course.

JPH

iTrader: (2)

i would have them resized. there is a huge debate on this forum about that. if you don't, u better atleast cycle the rod bolt, before the final trq. setting.

KCS

iTrader: (20)

You should, ARP even recommends that you resize the rod. Clevite and I think King or ACL offer bearings in .002" oversize for just this reason.

GuitsBoy

iTrader: (4)

How? Its a cracked rod. You'd have to overbore and run oversized bearings. Its more likely just a BS legal disclaimer on ARPs part. Many, many, many people running just fine without disassembling the entire short block just to add rod bolts. We're not talking about press fit studs anymore.

KCS

iTrader: (20)

Like I said, Clevite and either King or ACL offer .002" oversize bearings for this application. ARP says to Torque the rod bolts to a specified stretch/torque, then hone about .002" out of it. That should be enough to correct any distortion between the GM rod bolts and the ARP's.

It's as much as a BS legal disclaimer as the Surgeon General's warning on cigarettes. There's viable research and testing done to give it plenty of merit. I did it this way, this is the way you're supposed to do it, if you want to ignore that, then you might as well never worrying about using loctite or chasing blind bolt holes. It's whatever the installer is comfortable with, but I sleep better knowing it was done correctly in the engines I built.

socmguy

iTrader: (18)

I agree. I've got quite a few miles on my ARP rod bolts. Just make sure you read the insert that comes with the package. Use their assembly lube on the threads and hat and burnish them to 40lb/ft 3 times. Or, you could get a bolt stretch gauge and measure after you tq. them down. I believe proper rod bolt stretch for ARPs is .006"

socmguy

iTrader: (18)

Here's a link w/ some pictures of my rod bolt install. PITFA!!!

https://ls1tech.com/forums/showthrea...=803239&page=2