Posted By: GoDartGo
head bolts - 12/31/13 08:46 PM
what's the most they can be reused?
head bolts
Posted By: Supercuda
Re: head bolts - 12/31/13 09:40 PM
Quote:
what's the most they can be reused?
Depends on what application you are talking about.
old school, indefinitely for mild to stock applications.
Newer TTY (torque to yield) once, officially. I've reused them in stock applications after inspecting to ensure the threads were not stretched.
http://freeasestudyguides.com/a1_4.html
Posted By: 471Magnum
Re: head bolts - 12/31/13 11:48 PM
Just know that stock replacement head bolts are pretty inexpensive (like 40 bucks from Rock Auto). If you're building a new motor, I wouldn't skimp.
That being said, if it's not a torque to yield application, and they visually check out with no damage that would create a stress riser, you should be fine re-using them. Just thoroughly clean the threads and lube properly to get the correct torque reading.
Edit: Just checked Rock Auto. The no longer list LA bolts, but they've got Magnum-type (23 bucks).
That being said, if it's not a torque to yield application, and they visually check out with no damage that would create a stress riser, you should be fine re-using them. Just thoroughly clean the threads and lube properly to get the correct torque reading.
Edit: Just checked Rock Auto. The no longer list LA bolts, but they've got Magnum-type (23 bucks).
Posted By: GoDartGo
Re: head bolts - 01/01/14 12:10 AM
couldn't find them on Rock Auto, but found them at NAPA
on line to my house $34.
forgot to ad it's a Magnum headed LA.
didn't want to press my luck, this would have been
the fourth time for this set of bolts, 9.5-1, 480ish
cam, 3:91's out back and beat on like a hillbilly mule
on line to my house $34.
forgot to ad it's a Magnum headed LA.
didn't want to press my luck, this would have been
the fourth time for this set of bolts, 9.5-1, 480ish
cam, 3:91's out back and beat on like a hillbilly mule
Posted By: Cab_Burge
Re: head bolts - 01/01/14 03:22 AM
I reuse the stock head and main bolts until they won't toruqe properly anymore 
You can feel them start to fail, if you recognize the signs 
You can feel them start to fail, if you recognize the signs
Posted By: Supercuda
Re: head bolts - 01/01/14 03:47 AM
I think Magnums are TTY bolts and they are different lengths than an LA.
How I inspect TTY bolts is to lay a straight edge on the threads, if any do not all touch they get replaced.
How I inspect TTY bolts is to lay a straight edge on the threads, if any do not all touch they get replaced.
Posted By: 471Magnum
Re: head bolts - 01/01/14 04:20 AM
Quote:
I think Magnums are TTY bolts and they are different lengths than an LA.
Magnums are not TTY, but they are different lengths than LA.
Posted By: GoDartGo
Re: head bolts - 01/01/14 08:45 AM
Quote:
Just thoroughly clean the threads and lube properly
I've always used new motor oil, is there something
else I should be using?
Posted By: 52savoy
Re: head bolts - 01/01/14 11:51 AM
Posted By: Commando1
Re: head bolts - 01/01/14 02:11 PM
Quote:And it worked, right?
Quote:
Just thoroughly clean the threads and lube properly
I've always used new motor oil, is there something
else I should be using?
Keep using it.
Posted By: mcmopars
Re: head bolts - 01/01/14 03:12 PM
Quote:Quote:
I think Magnums are TTY bolts and they are different lengths than an LA.
Magnums are not TTY, but they are different lengths than LA.
intakes are,i would have assumed heads would have been too
Posted By: GoDartGo
Re: head bolts - 01/01/14 08:59 PM
Quote:Quote:And it worked, right?
Quote:
Just thoroughly clean the threads and lube properly
I've always used new motor oil, is there something
else I should be using?
Keep using it.
must be, I've never lost a head gasket yet!
Posted By: RapidRobert
Re: head bolts - 01/02/14 07:00 AM
If the threads look good I clean em with a brush then dip the threads in 30 wt eng oil then blow the threads off good with shop air. A drop of oil under the bolt head when going together