Author Topic: ARP bolt question  (Read 1982 times)

Offline 71chally416

  • Resident
  • *****
  • Posts: 3170
    • The Streetwalker
Re: ARP bolt question
« Reply #15 on: August 27, 2008 - 01:26:56 PM »
They were probably in shock looking at the size of those rods and figured there's no way one could ever fail.  :22yikes: But 37 year olds are 37 YO bolts.
Once we had Ronald Reagan, Bob Hope & Johnny Cash. Now we have Obama, No Hope and No Cash!




Offline NoMope Greg

  • Resident
  • *****
  • Posts: 3166
Re: ARP bolt question
« Reply #16 on: August 27, 2008 - 03:14:45 PM »
I suspect it's more likely that being a performance shop, they rarely run across someone like me.  I imagine most of their customers are already bringing them new bolts and rods, so perhaps he's just used to using the bolts provided and it slipped his mind.

I'm the most dangerous kind of fool: I know just enough to get myself in trouble.  :pullinghair:  Too bad I didn't ask this question before I went to the machine shop.  Oh well, live, learn and pay a little for your mistakes.  :swaying:
« Last Edit: August 27, 2008 - 03:19:11 PM by Greg's HO R/T »
Greg
2003 Ford Escape XLS
Currently Mopar-less :(

Offline 71chally416

  • Resident
  • *****
  • Posts: 3170
    • The Streetwalker
Re: ARP bolt question
« Reply #17 on: August 27, 2008 - 03:47:01 PM »
At least you're smart enough to correct them   :2thumbs:
Once we had Ronald Reagan, Bob Hope & Johnny Cash. Now we have Obama, No Hope and No Cash!

Offline moper

  • Resident
  • *****
  • Posts: 2368
Re: ARP bolt question
« Reply #18 on: August 28, 2008 - 05:45:02 PM »
Yeah, but the saavy guy would go "huge rods.. but whats with the tiny bolts?"...lol.

Offline Moparal

  • Permanent Resident
  • *******
  • Posts: 13085
Re: ARP bolt question
« Reply #19 on: August 28, 2008 - 05:47:07 PM »
302 ford rods and bolts are scarey. 24 ft lbs of tq.  Amazing

Offline 71chally416

  • Resident
  • *****
  • Posts: 3170
    • The Streetwalker
Re: ARP bolt question
« Reply #20 on: August 28, 2008 - 06:43:47 PM »
302 ford rods and bolts are scarey. 24 ft lbs of tq.  Amazing

Yeah, 5/16" bolts  :22yikes: There's more clamping force holding a Slant-6 1 bbl carb onto the Intake than holding the rod cap on a 302.
Even the old 2.2 4-banger chrysler motor has 3/8" rod bolts. 
Once we had Ronald Reagan, Bob Hope & Johnny Cash. Now we have Obama, No Hope and No Cash!

Offline NoMope Greg

  • Resident
  • *****
  • Posts: 3166
Re: ARP bolt question
« Reply #21 on: August 28, 2008 - 06:52:37 PM »
And yet you have all these Ford guys building blown or spray stroker small blocks and running into the 9's.  Do they suffer a lot of rod failures?  Or does the SBF design compensate in some other way? 
Greg
2003 Ford Escape XLS
Currently Mopar-less :(

Offline 71chally416

  • Resident
  • *****
  • Posts: 3170
    • The Streetwalker
Re: ARP bolt question
« Reply #22 on: August 29, 2008 - 01:07:50 AM »
They suffer PLENTY of failures. I've even seen the 302 blocks split completely in half. The cars you see running so good have aftermarket rods and/or stroker motors. It's had to tell what they are by just looking at them and none of them will admit what they really have anyway. They're all "Stock". Hell, mine is just a 318, right?  :smokin:
Once we had Ronald Reagan, Bob Hope & Johnny Cash. Now we have Obama, No Hope and No Cash!

Offline moper

  • Resident
  • *****
  • Posts: 2368
Re: ARP bolt question
« Reply #23 on: August 29, 2008 - 03:40:04 PM »
there's a local guy here, now runs a windsor based stroked with a big single turbo. He can run deep in the 8s, but the car is for street racing. He used to run stock block 5.0Ls on two stage of spray. 500hp to the tires, and split two clean in half. The 302 rod is like 5" long, and the pistons are msaller. Smaller=lighter, plus, the short strokes are slow average piston speeds.  Much less stress.

Offline 71chally416

  • Resident
  • *****
  • Posts: 3170
    • The Streetwalker
Re: ARP bolt question
« Reply #24 on: August 29, 2008 - 04:07:34 PM »
I saw one split the block at Cecil County a few years ago in the traps. Barrel rolled the car about 10 times when he got sideways in the oil. They air-lifted him out in a helicopter and took the mangled mess left of his car out on a rollback. It was entertaining to watch it roll :thumbsup:
Once we had Ronald Reagan, Bob Hope & Johnny Cash. Now we have Obama, No Hope and No Cash!