Just Bought An ASP Crank Pulley!
The stock bolt CAN NOT be re-used. It is torque to yield and it must be replaced. If you are running the crank pulley alone, you will need the 378K6 A/C belt and the 760K6 accessory belt. We have both of these in stock, as well as the bolt that you need (12557840) for $3.68. Here's a link to the belts:
http://www.thunderracing.com/catalog...1&sid=251#P310
You can use the part number above in our search feature on our web site to find the bolt. We also have the ARP bolt (113-234-2503) which can be re-used for $24.99.
Angie
http://www.thunderracing.com/catalog...1&sid=251#P310
You can use the part number above in our search feature on our web site to find the bolt. We also have the ARP bolt (113-234-2503) which can be re-used for $24.99.
Angie
Thread Starter
Staging Lane
Joined: Sep 2003
Posts: 53
Likes: 0
From: Hampden, MA
Originally Posted by Angie
The stock bolt CAN NOT be re-used. It is torque to yield and it must be replaced. If you are running the crank pulley alone, you will need the 378K6 A/C belt and the 760K6 accessory belt. We have both of these in stock, as well as the bolt that you need (12557840) for $3.68. Here's a link to the belts:
http://www.thunderracing.com/catalog...1&sid=251#P310
You can use the part number above in our search feature on our web site to find the bolt. We also have the ARP bolt (113-234-2503) which can be re-used for $24.99.
Angie
http://www.thunderracing.com/catalog...1&sid=251#P310
You can use the part number above in our search feature on our web site to find the bolt. We also have the ARP bolt (113-234-2503) which can be re-used for $24.99.
Angie
Originally Posted by Angie
The stock bolt CAN NOT be re-used. It is torque to yield and it must be replaced. If you are running the crank pulley alone, you will need the 378K6 A/C belt and the 760K6 accessory belt. We have both of these in stock, as well as the bolt that you need (12557840) for $3.68. Here's a link to the belts:
http://www.thunderracing.com/catalog...1&sid=251#P310
You can use the part number above in our search feature on our web site to find the bolt. We also have the ARP bolt (113-234-2503) which can be re-used for $24.99.
Angie
http://www.thunderracing.com/catalog...1&sid=251#P310
You can use the part number above in our search feature on our web site to find the bolt. We also have the ARP bolt (113-234-2503) which can be re-used for $24.99.
Angie
Well, FWIW, Derek Real and Mike Morgan of Morgan Motorsports claim that "the crank bolt is not a torque-to-yield piece that needs to be replaced each time it is loosened" You can read the article here (along with a picture comparing the two types of bolts): http://www.chevyhiperformance.com/te...ch/index3.html
Also, CHP wrote up an article where they did a few bolt on LS1 mods, one of which was the installation of an ASP crank pulley, and they did not mention using a new crank bolt. http://www.chevyhiperformance.com/te...ech/index.html
Originally Posted by poweredbyv8
Well, FWIW, Derek Real and Mike Morgan of Morgan Motorsports claim that "the crank bolt is not a torque-to-yield piece that needs to be replaced each time it is loosened" You can read the article here (along with a picture comparing the two types of bolts): http://www.chevyhiperformance.com/te...ch/index3.html
Also, CHP wrote up an article where they did a few bolt on LS1 mods, one of which was the installation of an ASP crank pulley, and they did not mention using a new crank bolt. http://www.chevyhiperformance.com/te...ech/index.html
Also, CHP wrote up an article where they did a few bolt on LS1 mods, one of which was the installation of an ASP crank pulley, and they did not mention using a new crank bolt. http://www.chevyhiperformance.com/te...ech/index.html
Have you ever compared a new bolt and a used bolt?
The used bolt will be longer because it stretches when torqued and once it is strecthed it cannot not be re-used.
Originally Posted by KissMySS98
Thanks for the info, and I believe that I bought it from YOU on Ebay
Yep, It was the pulley off my red car...I've upgraded to an ATI Damper on my new motor. Let me know if you need the bolt & belts!
Thanks again
Angie
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Originally Posted by Richie Carbone
I have done at least 20 ASP/stock pulley installs and I always use a new bolt.
Have you ever compared a new bolt and a used bolt?
The used bolt will be longer because it stretches when torqued and once it is strecthed it cannot not be re-used.
Have you ever compared a new bolt and a used bolt?
The used bolt will be longer because it stretches when torqued and once it is strecthed it cannot not be re-used.
Angie
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TECH Regular
Joined: Feb 2003
Posts: 430
Likes: 0
From: Pasadena, CA
Originally Posted by Richie Carbone
The used bolt will be longer because it stretches when torqued and once it is strecthed it cannot not be re-used.
Originally Posted by Camaro SS 2002
Then how come it is very common to re-use stock header bolts when installing headers.
Originally Posted by Camaro SS 2002
Then how come it is very common to re-use stock header bolts when installing headers.
and then you 
LOL. 
On The Tree
Joined: Dec 2003
Posts: 108
Likes: 0
From: Germantown, TN
The crank bolt is not a torque to yield piece. Look at the shaft that leads to the head of the bolt, a torque to yield piece is tapered till the top of the bolt, a non torque to yield piece is the same diameter all the way up to the head.
The crank bolt is not tapered= not a torque to yield piece.
I'd still buy a new one
The crank bolt is not tapered= not a torque to yield piece.
I'd still buy a new one
Teching In
Joined: Jul 2004
Posts: 1
Likes: 0
From: Petaluma, CA
No disrespect to Angie or TR, but has anyone ever bought from not-a-sponsor.com? They are currently offering both pulleys [with free shipping] for 98 LS1 at 202.25. I called and they said that
the parts are really ASP pulleys. Any thoughts or experiences??
the parts are really ASP pulleys. Any thoughts or experiences??
Last edited by WILWAXU; Jul 16, 2004 at 10:45 PM.
Originally Posted by afrugal1
No disrespect to Angie or TR, but has anyone ever bought from not-a-sponsor.com? They are currently offering both pulleys [with free shipping] for 98 LS1 at 202.25. I called and they said that
the parts are really ASP pulleys. Any thoughts or experiences??
the parts are really ASP pulleys. Any thoughts or experiences??
