ARP studs bolts

[LetchcoreCJ7]

Whats the concensus on running ARP bolts on the rods and mains? Is it necessary for a 4.6L in the 275 - 300 HP range? Also who all sells them?

[dwg86]

My opinion? Arp rod bolts are cheap insurance. Shop around for prices (ebay, summit, jegs, ect.) The rods have to be resized to use them. Stock main bolts are OK.

[woodjeep]

I have the ARP rod bolts installed, but I had the machine shop install them when they put the pistons on the rod. I didn't realize thay had to do any work to the rod to make them fit. It does take a higher than stock nut torque and will look that up for you momentarily. I have the Felpro headbolt kit and just reused my main crank bolts. You can buy them new from jeep for 3 or 4 bucks each..I had to get 2 because I lost one during the cleaning/storage process

[dwg86]

I have the ARP rod bolts installed, but I had the machine shop install them when they put the pistons on the rod. I didn't realize thay had to do any work to the rod to make them fit. It does take a higher than stock nut torque and will look that up for you momentarily. I have the Felpro headbolt kit and just reused my main crank bolts. You can buy them new from jeep for 3 or 4 bucks each..I had to get 2 because I lost one during the cleaning/storage process

Hopefully the machine shop resized the big end. When the rod is resized, a couple of thousands is removed from the rod mating surface (where the cap mates to the rod). Then the big end is honed back to stock dimensions, to make sure everything is perfectly round. When new rod bolts are installed, the big end is resized to make sure everything is lined up perfectly.

[SilverXJ]

Hopefully the machine shop resized the big end. When the rod is resized, a couple of thousands is removed from the rod mating surface (where the cap mates to the rod). Then the big end is honed back to stock dimensions, to make sure everything is perfectly round. When new rod bolts are installed, the big end is resized to make sure everything is lined up perfectly.

x2, they must be resized.

I have the ARP rod bolts installed, but I had the machine shop install them when they put the pistons on the rod. I didn't realize thay had to do any work to the rod to make them fit. It does take a higher than stock nut torque and will look that up for you momentarily.

They take 40 ft lbs.

[IH 392]

In a stock type application the rod will fail before the bolt does, it' pull apart right between the beam and the bolt.