Where to find out what bolt sizes are and where to buy them? - LS1TECH

Log In 


Conversions & Hybrids a.sponlink:link {font-size: 9px;} img.surround{ border-color: #000000; border-width:1px; margin-bottom: 9.5px; } span.sponsortext { font-size: 10px; }
LSX Engines in Non-LSX Vehicles

Where to find out what bolt sizes are and where to buy them?

Reply
 
Thread Tools Search this Thread
Old 01-17-2009, 08:26 PM   #1
Launching!
Thread Starter
 
samh_08's Avatar
 
Join Date: Oct 2007
Posts: 288
Default Where to find out what bolt sizes are and where to buy them?

As the title says, where did you guys find out what bolts you needed and where did you get them from? Im not having any luck with dealers.

BTW I need bellhousing to block bolts..
samh_08 is offline   Reply With Quote
Old 01-17-2009, 08:57 PM   #2
On The Tree
iTrader: (7)
 
TransAm Mania's Avatar
 
Join Date: Aug 2006
Location: Cicero IL
Posts: 162
Default

I got all my bolts from the Chevy dealer. I too had to purchase bell housing bolts and they are not cheep! I think I spent somewhere around $10.00 a piece and there's like 8 of them I think. GM uses weird diameter a pitch combination that you probably won't find anywhere else. I was able to find some bolts in the parts for sale forum. Try posting what you need in the parts wanted forum and wait a few days.
TransAm Mania is offline   Reply With Quote
Old 01-17-2009, 09:36 PM   #3
TECH Addict
iTrader: (1)
 
Pop N Wood's Avatar
 
Join Date: May 2006
Posts: 2,962
Default

They are just standard M10x1.5x40 METRIC bolts. You can get them anywhere. I bought a box of 25from http://www.mcmaster.com/, part number 91303A261

In fact, it is super easy to cross thread STANDARD SBC bolts into an LS block.

Ask me how I know.
Pop N Wood is offline   Reply With Quote
Old 01-17-2009, 09:42 PM   #4
TECH Senior Member
iTrader: (12)
 
bczee's Avatar
 
Join Date: Jan 2006
Location: Concord, CA
Posts: 6,585
Default

This is one of the great links you can find in the FAQ / Sticky...

http://www.enginepartsplus.com/pdf/P...%20Catalog.pdf
bczee is offline   Reply With Quote
Old 01-17-2009, 09:43 PM   #5
Launching!
Thread Starter
 
samh_08's Avatar
 
Join Date: Oct 2007
Posts: 288
Default

Haha how do you know? J/k...Are they the same all the way around? How many will I need, 5?
samh_08 is offline   Reply With Quote
Old 01-17-2009, 09:54 PM   #6
Launching!
Thread Starter
 
samh_08's Avatar
 
Join Date: Oct 2007
Posts: 288
Default

Quote:
Originally Posted by bczee View Post
This is one of the great links you can find in the FAQ / Sticky...

http://www.enginepartsplus.com/pdf/P...%20Catalog.pdf
Great page, but I have looked there before and have found nothing to do with bellhousing to block bolts.

mcmaster.com seems to be a good bet, how many will I need?
samh_08 is offline   Reply With Quote
Old 01-18-2009, 03:39 AM   #7
TECH Enthusiast
iTrader: (3)
 
Join Date: Nov 2004
Location: West Plains, Missouri
Posts: 554
Default

The only odd hard to find bolt size on the LSx's are flywheel-crank bolts and head bolts. These are 11 MM.

As for everything else EXTERNAL, they will be a standard metric bolt you can find on shelf at most hardware/auto parts stores.

Lets understand the metric numbering M10x1.5x40

M10 = Diameter of bolt is approx 10 mm. Measuring with a digital caliper you may get 9.92 or something very close, round up.

1.5 = distance between each thread peak (or groove). Sometimes its easier to measure 2 threads. Then divide this by 2. So if 2 thread peaks measure 3 mm apart, divide by 2, and the pitch is 1.5

the last number (40) = 40 mm in length.
busta9876 is offline   Reply With Quote
Old 01-18-2009, 07:05 AM   #8
TECH Addict
iTrader: (12)
 
Join Date: Jul 2004
Location: Delaware
Posts: 2,106
Default

I have an extra set of them actually. The BEST place to get grade 10.9 Metric bolts is any John Deere dealer or service place. I paid like $.70 each for the bell housing bolts. They had just about every ls1 bolt size except for the flywheel to crank and pressure plate bolts.
Shawn MacAnanny is offline   Reply With Quote
Old 01-18-2009, 07:36 AM   #9
TECH Fanatic
iTrader: (15)
 
subtlez28's Avatar
 
Join Date: Jun 2006
Location: Janesville WI
Posts: 1,155
Default

Quote:
Originally Posted by Shawn MacAnanny View Post
I have an extra set of them actually. The BEST place to get grade 10.9 Metric bolts is any John Deere dealer or service place. I paid like $.70 each for the bell housing bolts. They had just about every ls1 bolt size except for the flywheel to crank and pressure plate bolts.
Good tip!

How about those flywheel and pressure plate bolts? Stuck w the dealer on those? I need them myself.
subtlez28 is offline   Reply With Quote
Old 01-18-2009, 07:51 AM   #10
TECH Veteran
iTrader: (2)
 
Old Geezer's Avatar
 
Join Date: Jun 2004
Location: GA, USA
Posts: 4,890
Default

I use the dies in my metric tap set. Just thread a die on the bolt, or screw the tap into the hole, if no bolt is available...
A true "dual purpose tool".
Furthermore, most good quality tap/die sets have a thread pitch gauge in them.

Last edited by Old Geezer; 01-18-2009 at 10:33 AM.
Old Geezer is offline   Reply With Quote
Old 01-18-2009, 09:47 AM   #11
Launching!
Thread Starter
 
samh_08's Avatar
 
Join Date: Oct 2007
Posts: 288
Default

Good info boys. So if we use bolts other than what came from GM, can we just as well throw their torque specs out of the window as well?
samh_08 is offline   Reply With Quote
Old 01-18-2009, 01:05 PM   #12
TECH Addict
iTrader: (12)
 
Join Date: Jul 2004
Location: Delaware
Posts: 2,106
Default

I honestly didnt torque any of my engine bolts. I have no problems. The only thing that really matters are the rockers and the head bolts for torque specs so long as you use commong sense and blue/red thread locker where neccessary. I know i'll get flamed for saying that but torque specs can be gotten close enough by hand if you're used to the feel.
Shawn MacAnanny is offline   Reply With Quote
Old 01-18-2009, 01:07 PM   #13
TECH Veteran
iTrader: (2)
 
Old Geezer's Avatar
 
Join Date: Jun 2004
Location: GA, USA
Posts: 4,890
Talking Yep!

"I know i'll get flamed for saying that but torque specs can be gotten close enough by hand if you're used to the feel."

+1.. I use the "1/4 turn, before it twists off", method!
Old Geezer is offline   Reply With Quote
Old 01-18-2009, 01:27 PM   #14
Launching!
Thread Starter
 
samh_08's Avatar
 
Join Date: Oct 2007
Posts: 288
Default

Im guilty as well! Oh well...Anyways, how many total bolts will I need to get my 4L60E bolted to my 05 LQ4? (besides the flexplate and torque converter bolts)
samh_08 is offline   Reply With Quote
Old 01-18-2009, 01:32 PM   #15
TECH Addict
iTrader: (12)
 
Join Date: Jul 2004
Location: Delaware
Posts: 2,106
Default

Haha well i figure i reuse bolts, threads arent always the cleanes (minimal bolt corrosion, rust... etc) and other parts like headers use different bolts, different flange length clamping, different gaskets, and same as the Victor JR intake different bolts, intake thickness, really factory torque specs are designed for FACTORY bolts and FACTORY gaskets. I'm not saying dont use them I'm just saying i know that after things have been removed a few times and things have sat a while the factory torque specs really arent that much more accurate. I'd rather have it tight as i feel it needs to be with some blue thread locker. I know the bolt wont break off and it wont back out either. I've had no problems. For head gaskets though you must use torque specs and a degree wheel or just rpm bolts and the rockers must be 22ft lb with red thread locker.
Shawn MacAnanny is offline   Reply With Quote
Old 01-18-2009, 01:36 PM   #16
TECH Addict
iTrader: (12)
 
Join Date: Jul 2004
Location: Delaware
Posts: 2,106
Default

I think it was 8 bolts if bolting to the oil pan, 6 if not bolting to the oil pan. Or 7. I cant rememmber. I think i bought 9 incase i lost one. They were cheap from John Deere.
Shawn MacAnanny is offline   Reply With Quote
Old 01-18-2009, 02:09 PM   #17
Launching!
Thread Starter
 
samh_08's Avatar
 
Join Date: Oct 2007
Posts: 288
Default

Quote:
Originally Posted by Shawn MacAnanny View Post
I think it was 8 bolts if bolting to the oil pan, 6 if not bolting to the oil pan. Or 7. I cant rememmber. I think i bought 9 incase i lost one. They were cheap from John Deere.
But they were the same all the way around? I didnt know if the ones that go into the oil pan were different..

Not having random bolts and not having a flexplate is pretty much hoilding up my show right now ...Anyone have a flexplate with bolts for me?
samh_08 is offline   Reply With Quote
Old 01-18-2009, 03:12 PM   #18
TECH Addict
iTrader: (12)
 
Join Date: Jul 2004
Location: Delaware
Posts: 2,106
Default

I think they are the same all the way around. I am using the Moroso pan though so theres no way of me telling because the transmission doesnt bolt to that pan. All of the other bolts are the same though.
Shawn MacAnanny is offline   Reply With Quote
Old 05-11-2011, 05:59 PM   #19
Teching In
iTrader: (10)
 
Join Date: Mar 2011
Posts: 20
Default

I went to the below link and did not see what I am looking for
http://www.enginepartsplus.com/pdf/P...%20Catalog.pdf
I'm looking for bolt sizes and thread pitches for

valley cover
starter
tbi mounting
manual flywheel to crank
blownnova is offline   Reply With Quote
Old 05-11-2011, 08:00 PM   #20
On The Tree
iTrader: (1)
 
Join Date: Sep 2007
Location: ND
Posts: 139
Default

Alternator Rear Bracket
11515767 Bolt 1 M10x1.5x35
12556915 Bracket 1
11509666 Bolt 1 M8X1.25X50

Alternator Front
12560344 Pulley 1
11516366 Bolt 2 M10X1.5X125
12563327 Bracket 1
11516360 Bolt 1 M10X1.2X90

P/S Pump
11516697 Bolt 2
12555693 Bracket 1
11515757 Bolt 2 M8X1.25X25
12557331 Bracket 1
11515767 Bolt 3 M10x1.5x35

Compressor
12556677 Bracket 1
11516714 Bolt 2 M10X1.5X110
11515771 Bolt 6 M10X1.5X55

Starter
12561387 Bolt 2 M10x1.5x113

Main Belt Tensioner
11515768 Bolt 2 M10x1.5x50

Water Pump
12551926 Bolt 6 M8X1.25X83

Oil Pan
12554990 Bolt 2 M6X1.0X136
11515758 Bolt 13 M8X1.25X30

Motor Mount Bolts (Engine Side)
11516328 Bolt 8 M10X1.5X30

Motor Mount Through Bolts
11516940 Bolt 2 M12X1.75X160
11515744 Nut 2 M12X1.75

Motor Mount Bolts Frame Side
1638817 Bolt 8 M10X1.25X25
Nut 8 M10x1.25

Transmission Case to Engine Bolts
11516695 Bolt 8 M10X1.5X40

Torque Converter To Flexplate Bolts
11589040 Bolt 3 M10X1.5X16
mille_3 is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Technical stumper for the ls gurus Matthew Hahnl Generation V Internal Engine 1 04-10-2016 09:24 PM
ngk afx wideband where to buy? key4 PCM Diagnostics & Tuning 12 08-25-2015 02:11 AM
fast 102 couplers? sdimex Generation III External Engine 6 11-02-2012 08:01 AM
Anyone swap stock LS1 intake bolts out for Stainless 1976CamaroGuy Conversions & Hybrids 11 02-16-2012 08:18 AM
Procharger twin intercooler installation -Q- Forced Induction 12 03-16-2010 02:24 PM


Tags
79, bellhousing, bolt, datsun, deere, header, john, locker, ls1, m10, metric, pickup, pitch, sbc, sizes, thread, torque

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



All times are GMT -5. The time now is 03:46 AM.