Slant Six Forum
https://slantsix.org/forum/

Head Bolt Source
https://slantsix.org/forum/viewtopic.php?t=19777
Page 1 of 2

Author:  vynn3 [ Tue Sep 19, 2006 11:13 am ]
Post subject:  Head Bolt Source

Anyone know a source for cylinder head bolts, Dorman Part #675121? I placed an order with RockAuto, but they say they've been discontinued...

Author:  slantvaliant [ Tue Sep 19, 2006 12:11 pm ]
Post subject: 

If you want to step up to studs:

http://www.slantsix.org/articles/ARP-st ... rdware.htm

Author:  vynn3 [ Tue Sep 19, 2006 12:54 pm ]
Post subject: 

Nope — don't want studs. At least not for the cylinder head. I started installing the head and manifolds as a single unit to avoid the difficulty of that center lower manifold nut, and it's hard enough to do as is.

If no one knows of a source, I'll just reuse the existing bolts.

Author:  Dart270 [ Tue Sep 19, 2006 1:27 pm ]
Post subject: 

I have never replaced a head bolt, and never had one break/strip. I have used some of them at least 5x over (head swap, rebuild...) and usually torque them to >80ft-lbs (wet with oil).

Lou

Author:  argentina-slantsixer [ Tue Sep 19, 2006 2:25 pm ]
Post subject: 

Quote:
I have never replaced a head bolt, and never had one break/strip. I have used some of them at least 5x over (head swap, rebuild...) and usually torque them to >80ft-lbs (wet with oil).

Lou
I snapped one in one ocasion when my torque wrench got sc**wed up and I didn't notice and tighten it in excess of 12 kg/cm2.

Other than that, I always reuse them.... What is wrong with them? bad threads? Is hard to see one of those wear bad enough not to reuse them if you can get them... I have one set of ARP's that I got for feeling that I wasn't beeing THAT cheap, but never installed them yet. Got con rods, mains and head arp kits. Really nice stuff...

Author:  Bren67Cuda904 [ Tue Sep 19, 2006 3:25 pm ]
Post subject: 

My understanding is that the ARP bolt are a real good idea if your engine is blown or using nitrous. These bolts are less likely to stretch under the load. I would think that the stock bolt would be good otherwise. I did have one main cap bolt on a Chevy small block that almost came up to spec and then it got easier and easier to turn. The bolt was turning into a screw instead of a bolt. :shock: A new bolt fixed this. (sorry about the nonSlant reference)

Author:  vynn3 [ Wed Sep 20, 2006 6:34 am ]
Post subject: 

I'm sure the stock bolts are fine, but I'm trying to take the opportunity to replace all of the 35 year old parts that I can, and new bolts are cheap insurance.

But, eventually, somebody's going to need a new head bolt or two. Are they gonna have to go to studs? That would kinda suck.

Author:  sick6 [ Wed Sep 20, 2006 12:07 pm ]
Post subject: 

Quote:
I have one set of ARP's that I got for feeling that I wasn't beeing THAT cheap, but never installed them yet. Got con rods, mains and head arp kits. Really nice stuff...
can you tell us the head bolt part number?

Author:  argentina-slantsixer [ Wed Sep 20, 2006 12:51 pm ]
Post subject: 

ehh.... nope... head studs (not bolts) I got them slightly used, as well as mains. I said I got for feeling that I wasn't beeing THAT cheap... the THAT part explaining it perfectly! :lol:

Author:  slantvaliant [ Wed Sep 20, 2006 1:31 pm ]
Post subject: 

I prefer stock headbolts for most engines, and that's what I have. I just posted the ARP stuff because I knew where it was. :wink:
If you have any doubt about critical bolts, it is a good idea to replace them. Metal does change over time, and who knows what those fasteners have been through?

Author:  Brian [ Wed Sep 20, 2006 5:03 pm ]
Post subject: 

The ARP head bolts are nice, but $75 is a lot for some bolts, nuts & washers. :shock: But I still run them in my car :D

Author:  argentina-slantsixer [ Wed Sep 20, 2006 5:18 pm ]
Post subject: 

Quote:
The ARP head bolts are nice, but $75 is a lot for some bolts, nuts & washers. :shock: But I still run them in my car :D
there's a seller's store in ebay that sells them new for 50 bucks IIRC

Author:  sick6 [ Thu Sep 21, 2006 4:52 am ]
Post subject: 

PAW sells them cheaper than that.........

Author:  vynn3 [ Thu Sep 21, 2006 8:35 am ]
Post subject: 

I haven't found ARP or PAW head bolts, only studs. Any part numbers?

Author:  LUCKY13 [ Thu Sep 21, 2006 10:23 am ]
Post subject: 

Cant you put the studs on after the head is down just like a bolt anyway? Some are even made this way with a allen head top or screw driver slot. If not dubble nut or sloting them wouldnt be to hard.


Jess

Page 1 of 2 All times are UTC-08:00
Powered by phpBB® Forum Software © phpBB Limited
https://www.phpbb.com/