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
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 ?
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
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.)
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 ??
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
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.
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).]
