[Fot] ARP Head Studs

[Kas Kastner]

Back home in Oceanside from that little 4389 mile hike.

Never used anything but full torque on the head.  That was 105 in increments
of 10 pounds after the first 75 pound start up.

Never Be beaten by Equipment
Kas Kastner
  ----- Original Message -----
  From: Bill Babcock
  To: Henry Frye
  Cc: FOT
  Sent: Wednesday, May 23, 2007 4:35 PM
  Subject: Re: [Fot] ARP Head Studs


  Actually I never use full torque with steel or copper gaskets, but I
  would if I used composite. I got to 75 with steel and see how it
  goes--looking for mayo in the top end. If I get some I go up until it
  quits. I don't run the engine hard until I'm satisfied with the gasket.
  Bill Babcock
  billb at bnj.com
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  On May 22, 2007, at 5:08 AM, Henry Frye wrote:

  > I got bit with a leaky head gasket at MOTRAH because I read the card
  > that comes with the ARP head studs. It says not to pull full book spec
  > on the torque because the studs are so strong they don't stretch like
  > the stock ones.
  >
  > Well, I polled the group at Road America, nobody ever read the card,
  > everybody uses the stock 105 ft lbs.
  >
  > I used moly lube, torqued to 85, and it leaked. After the damage was
  > done, I brought them up to 105, but no joy. Had to redo the gasket.
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