long story short, they broke. I replaced all the bearings, installed pistons in the block, started torquing rod caps. Never got past about 45-50 ft-lbs and **snap**. the rod bolts were all just stretching out (they are originals). replacement time, obviously.

Now, where can I get these? Are the early 360 A block and LA style rod bolts the same? I saw ARP 144-6001 and 144-6401 says "Magnum" but under the "year" states only 1968-1991.

http://www.summitracing.com/parts/AR...GE%7cCID%7c360

NOWHERE can I actually find something that says it applicable to a 1992 and up Magnum 5.9. WTF, over?



Edit: The Haynes manual says "Connecting rod cap bolts, step torque 26-51-73 ft lbs", too high, huh?

 

your one lucky chap. the torque you are using sounds correct but your bolts sound like they were tired.
sorry do not know for sure the cross ref replacement.

consider it a good day, coulda broke shortly after install and run. ouch.

 

I wanted to double check the torque specs, but all I can find is the LA SB which is 45 on the rod caps and 85 on the mains.
That is a big difference from Haynes'. 73 on the rod caps and 129 on the mains.

So which one is right? I know each bolt manufacturer may suggest a slightly different torque value, but holy hell this is supposed to be factory specs in this case.

I even checked the specifics for the ARP 144-6401 kit: only requires 50 ft-lbs.
Even the ARP Super-Duper-Ultra-Hardened-Mega-Racer bolt kit: 55 ft-lbs

Just getting so pissed now thinking I over-torqued my mains and rods because of some f**king Haynes manual misprint.....

 

Factory service manual says 45lb-ft on rod caps.

 

I JUST LOOKED AT THAT. Now I'm really pissed off, I broke the F'ing rod bolts and spent the day shopping for new ones. Unnecessary cost and waste of time, I'M GOING TO BURN THIS STUPID GOSH DARNED HAYNES MANUAL.

I have the FSM on .pdf, just not a computer in the shop. Looks like I may do some printing. aarrgghh.

 

Staples can print and bind that up real nice for not to much.

 

Really? It's upwards of 450 pages.

 

Last one I had done was 380 pages for ~$30. And it's a heck of a lot neater then I could do.

 

dont beat yourself up bud. i have an ARP main stud kit that calls for 90 ft/lbs. HOWEVER, due to clearance issues i have to use one bolt. i glanced at the torque spec in the haynes manual (129 ft/lbs) and proceeded to torque the bolt.

i then realized that was the diesel spec, OOOPS! im just glad it didnt break in the block or anything.

 

crap. didnt pay attention to what I was reading. rod caps-main caps. for rod caps that does sound too high, sorry for the mis information but sounds like smarter people chimed in.