2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

ARP Head Studs and Main Studs?

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Old 03-22-2010, 10:05 PM
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ARP Head Studs and Main Studs?

Does any one know what the part number for ARP headstuds are? also does anyone make main studs?
Old 03-22-2010, 10:11 PM
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231-4701 arp head studs. We do carry them in stock...
Old 03-22-2010, 10:45 PM
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thanks a lot that is what i found, is there any main studs out there or am i stuck with the stock bolts?
Old 03-23-2010, 12:50 AM
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there are main studs http://www.summitracing.com/parts/ARP-209-5401/
Old 03-23-2010, 01:23 PM
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why does summit have them for less than $100 and OTTP have them for $300?

Josh/Sean/John - can you help answer for me? I was gonna buy these but want some insight.
Old 03-23-2010, 01:26 PM
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subd, im goign with bates tho
Old 03-23-2010, 03:06 PM
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Originally Posted by JapEatr
why does summit have them for less than $100 and OTTP have them for $300?

Josh/Sean/John - can you help answer for me? I was gonna buy these but want some insight.
300? I thought they were 419$.

I was wondering the same.
Old 03-23-2010, 05:29 PM
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Originally Posted by TurboTechRacing
231-4701 arp head studs. We do carry them in stock...
I do believe that the LSJ part number for head studs is actually ARP 209-4701. The part number you have displayed is for the 2.2. I dont know maybe a mix up.
Old 03-23-2010, 05:34 PM
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Originally Posted by 06_SIC_SS
Do not get these for the LSJ I ordered these and started to build the motor last night and they are about 3 inches too short note that these are for a 2 bolt main this kit includes 10 studs the main girdle of the LSJ requires 20 of one size and 10 of another

Originally Posted by brutus.nova
I do believe that the LSJ part number for head studs is actually ARP 209-4701. The part number you have displayed is for the 2.2. I dont know maybe a mix up.
ARP Does not make a specific kit for headstuds the ARP 209-4701 do not work they are a different thread pitch i called ARP this morning and they notified me of this. If you look on turbotechracing.com they show the ARP 231-4701 as head studs that fit the 2.0 2.2 and the 2.4 Ecotec

Last edited by MissSS; 03-23-2010 at 05:34 PM. Reason: Automerged Doublepost
Old 03-23-2010, 05:36 PM
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Originally Posted by MissSS

ARP Does not make a specific kit for headstuds the ARP 209-4701 do not work they are a different thread pitch i called ARP this morning and they notified me of this. If you look on turbotechracing.com they show the ARP 231-4701 as head studs that fit the 2.0 2.2 and the 2.4 Ecotec
Exactly, the 231-4701 works with ALL ecotecs in the cobalt, do not get any other part number
Old 03-23-2010, 06:01 PM
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Originally Posted by MissSS
Do not get these for the LSJ I ordered these and started to build the motor last night and they are about 3 inches too short note that these are for a 2 bolt main this kit includes 10 studs the main girdle of the LSJ requires 20 of one size and 10 of another
Really? I am so glad I bought them and they are on there way... This blows

I was worried about this because I didnt see a quantity or anything. I just looked it up too, they are for a opel/vauxhall...
Old 03-23-2010, 07:51 PM
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Originally Posted by MissSS
Do not get these for the LSJ I ordered these and started to build the motor last night and they are about 3 inches too short note that these are for a 2 bolt main this kit includes 10 studs the main girdle of the LSJ requires 20 of one size and 10 of another



ARP Does not make a specific kit for headstuds the ARP 209-4701 do not work they are a different thread pitch i called ARP this morning and they notified me of this. If you look on turbotechracing.com they show the ARP 231-4701 as head studs that fit the 2.0 2.2 and the 2.4 Ecotec
yeah retarded eh?
Old 03-23-2010, 09:26 PM
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I called summit to tell them this info, since I didnt even see that it was for a 2 bolt main (weird I would trust that when it says 2.0l chevy saturn) They said that is what ARP specs. I said well there is 20 main bolts that came out of my block, how many are in your kit? After him still saying that ARP specs that exact setup for our car he put me on hold for 5 minutes. Then comes back saying I guess its for the opel 2 bolt main, you will have to refuse shipment since its already in route then they will refund me... what a hassle.
Old 03-24-2010, 09:29 AM
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i stand corrected. Thank you for the advice before i went and bought the wrong stud kits...
Old 03-24-2010, 10:10 AM
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great information...thanks for the heads up!
Old 03-25-2010, 01:53 AM
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Originally Posted by SCcobaltSS
I called summit to tell them this info, since I didnt even see that it was for a 2 bolt main (weird I would trust that when it says 2.0l chevy saturn) They said that is what ARP specs. I said well there is 20 main bolts that came out of my block, how many are in your kit? After him still saying that ARP specs that exact setup for our car he put me on hold for 5 minutes. Then comes back saying I guess its for the opel 2 bolt main, you will have to refuse shipment since its already in route then they will refund me... what a hassle.
whod u talk to if u dont mind me askin? if u remember by chance
Old 03-25-2010, 02:25 AM
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I went with bates engineering studs
Old 03-25-2010, 08:21 AM
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Originally Posted by 06_SIC_SS
whod u talk to if u dont mind me askin? if u remember by chance
IDK, I just talked to someone in the sales tech line or something in that area. Not too sure. I just hope they take off that the stud are NOT for our engine. It has to be hurting them especially because I am going to refuse the package and get a full refund. Now they pay that shipping charge? Seems like a waste.
Old 03-25-2010, 12:29 PM
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Originally Posted by SCcobaltSS
IDK, I just talked to someone in the sales tech line or something in that area. Not too sure. I just hope they take off that the stud are NOT for our engine. It has to be hurting them especially because I am going to refuse the package and get a full refund. Now they pay that shipping charge? Seems like a waste.
i will make sure it gets off ... and yeah we pay the shipping charge if its our mistake
Old 06-09-2013, 05:47 PM
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sorry to bring this thread back alive. but any one know the arp main studs torque numbers. caint seem to find them.
Old 06-09-2013, 05:57 PM
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Wats the part number?? Theres no arp main stud kit for the ecotecs
Old 06-10-2013, 05:21 AM
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There's no kit. U have to order each one check first post of thread.
Old 06-10-2013, 07:33 AM
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Ya ive bought it they r to short.
I have part numbers for the correct length studs.
Old 06-10-2013, 05:49 PM
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the part numbers arent correct in the first post? where he lists the nuts studs and washer part numbers?

what torque specs did u use for them?
Old 07-03-2013, 05:34 PM
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Torque spec for the mains?


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