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Main bearing BOLTS, need GM part # by Lou6t4gto
Started on: 07-19-2013 07:09 PM
Replies: 13 (486 views)
Last post by: Robertzep2 on 07-20-2013 09:38 PM
Lou6t4gto
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Report this Post07-19-2013 07:09 PM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
I need a part # for 1997 3800sc Main Cap "Bolts". Someone had listed them a few weeks ago (2450-3056), I ordered them by the part # they gave, received them, Not even close. They look more like Head bolts. (too long, different size heads) any help appreciated. Thanks
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Robertzep2
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Report this Post07-19-2013 08:10 PM Click Here to See the Profile for Robertzep2Click Here to Email Robertzep2Send a Private Message to Robertzep2Edit/Delete MessageReply w/QuoteDirect Link to This Post
I am who posted that list, and here is the exact part you are requesting???
http://www.tonkinonlinepart...412126/24503056.html
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Lou6t4gto
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Report this Post07-19-2013 08:48 PM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
That IS the # on the sealed "GM bag" I got. BUT, those bolts in no way shape or form FIT ! not your fault, but how am I going to get the right bolts if GMs listing is wrong ?
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Robertzep2
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Report this Post07-19-2013 08:57 PM Click Here to See the Profile for Robertzep2Click Here to Email Robertzep2Send a Private Message to Robertzep2Edit/Delete MessageReply w/QuoteDirect Link to This Post
Did you by online or at a local dealer? I do understand your frustrations! I also understand you weren't blaming me. I just want to help, and help all of us doing this swap have good list of part numbers.
-Robert
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lateFormula
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Report this Post07-19-2013 10:57 PM Click Here to See the Profile for lateFormulaSend a Private Message to lateFormulaEdit/Delete MessageReply w/QuoteDirect Link to This Post
Lou, have you looked at the ARP catalog? They show a set of main bearing cap studs for the 3800SC engine.

http://www.summitracing.com/parts/arp-193-5401
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Lou6t4gto
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Report this Post07-20-2013 12:24 AM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
I'm not doing Studs because I don't want have to get it align bored. besides, $8 is a lot better than $108. The mains in a 3800 are bulletproof, studs are a waste as far as I'm concerned. (maybe in a different engine.)
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Lou6t4gto
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Report this Post07-20-2013 12:59 AM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
OK, this is the kind of thing that "Keeps me awake"(it's 1 am). The bolts I removed (factory) have 13mm heads, the bolts I got have 15 mm heads. The new Bolts are 3/4" LONGER than the originals, BUT, I went out and "measured" the" Depth" of the bolt holes, and they Are deep enough to get the bolts in ! This # bolt must be a 2nd design or something. AM I risking anything by using these bolts (Being so much longer ) ??
Fieroaddicted, Did you reuse you main bolts ? Or did you use these longer ones?? Or find originals ??
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MarkS
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Report this Post07-20-2013 10:59 AM Click Here to See the Profile for MarkSClick Here to Email MarkSSend a Private Message to MarkSEdit/Delete MessageReply w/QuoteDirect Link to This Post
Hi,

Maybe I am missing something but the link description mentions L27 but no other type that I saw; even though applications go out to 1999?

BR's

Mark

------------------
86 SE V6 4 speed
86 SE V6 Auto
2008 G6 GT "Street" Coupe
2005 Buick 3.6 Rendezvous
2001 Olds Silhouette (AKA The Band Van)

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Robertzep2
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Report this Post07-20-2013 11:19 AM Click Here to See the Profile for Robertzep2Click Here to Email Robertzep2Send a Private Message to Robertzep2Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by MarkS:
Maybe I am missing something but the link description mentions L27 but no other type that I saw; even though applications go out to 1999?


http://www.tonkinonlinepart...ukey_product=6412126
Go to the right hand screen... down to 138. BOLT. Engine Main Bearing Cap.
ENGINE ASM-3.8L V6 PART 1 CYLINDER BLOCK AND RELATED PARTS
(L67/3.8-1); L67 - ENGINE GAS,3.8L(3.8-1),SFI,V6,SUPERCHARGED;
Scroll down on the left to the diagram of the L27 and it has the same part for the bearing cap as 24503056
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Lou6t4gto
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Report this Post07-20-2013 01:48 PM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
Just trying to make sure that the "Extra" 3/4" of bolt isn't going somewhere where it can do any damage.
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bonaduce
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Report this Post07-20-2013 02:58 PM Click Here to See the Profile for bonaduceClick Here to Email bonaduceSend a Private Message to bonaduceEdit/Delete MessageReply w/QuoteDirect Link to This Post
just checked the gm catalog 2450-3056 is for vertical bolt, used from 1997-2003, as of my last update disk (1 week ago), 24505576 is for horizontal bolt. According to GM dealer world, there is no history of a part# change, and no enginering notes about 1st or 2nd designs. dimensions should be 7/16 x 14x 3.6 This is all through gm catalog info here at work, hope this helps.

dan
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Lou6t4gto
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Report this Post07-20-2013 03:22 PM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
says 54 lbs, then 105 degrees in Chiltons(Big book), Torquespec.com says 30 lbs then 110 degrees. that's an awful big difference
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MarkS
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Report this Post07-20-2013 08:49 PM Click Here to See the Profile for MarkSClick Here to Email MarkSSend a Private Message to MarkSEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Robertzep2:


http://www.tonkinonlinepart...ukey_product=6412126
Go to the right hand screen... down to 138. BOLT. Engine Main Bearing Cap.
ENGINE ASM-3.8L V6 PART 1 CYLINDER BLOCK AND RELATED PARTS
(L67/3.8-1); L67 - ENGINE GAS,3.8L(3.8-1),SFI,V6,SUPERCHARGED;
Scroll down on the left to the diagram of the L27 and it has the same part for the bearing cap as 24503056


I see it, thanks!

Maybe run a bottoming tap into those bolt holes to clean the previously unused threads for the longer bolts?

BR's,

Mark

[This message has been edited by MarkS (edited 07-20-2013).]

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Robertzep2
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Report this Post07-20-2013 09:38 PM Click Here to See the Profile for Robertzep2Click Here to Email Robertzep2Send a Private Message to Robertzep2Edit/Delete MessageReply w/QuoteDirect Link to This Post
Guys,
For the record, I am not trying to do the "I told you so" or anything like that. I just want to make sure I have posted the right part numbers!

So, Dan (bonaduce), you have confirmed the Main Bearing and cross bolts. Could you check the others and add the GM Head bolt part number?

Main Bolts - 24503056
Main Cross Bolts - 24505576
Rod Bolts - 25531956
Rocker Arm Bolts - 24503515
Fel-Pro Head bolts - ES74033

Thanks,
-Robert
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