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Old 07-08-2010, 12:57 AM   #1
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Default Torque specs 5.3 Reassembly/Install

As the last few parts for my 4.3 to 5.3 swap trickle in this week I thought I'd try to gather some torquing info for various parts if anyone knows or knows of a place to get this information. Basically I'm needing torque specs (if they even exist) for the following

exh. manifold bolts
intake manifold bolts
throttle body to manifold
motor mount register bolts
motor mounts (to engine and to registers)
tranny to engine
flexplate to torque converter
starter bolts
valve covers (doubt exists but figured I'd ask anyways)
coil pack bracket to valve covers

Thanks all.
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Old 07-08-2010, 03:07 AM   #2
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A good source for this information is a Haynes manual for the 1999 thru 2005 Silverado/Sierra
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Old 07-08-2010, 03:16 AM   #3
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Not being a smart ***. Do you have common sense?? If you do all these can be done with out needing a tq spec

exh. manifold bolts
intake manifold bolts big part here is making sure they are all about the same
throttle body to manifold
motor mount register bolts
motor mounts (to engine and to registers)
tranny to engine
starter bolts
valve covers (doubt exists but figured I'd ask anyways)
coil pack bracket to valve covers

flexplate to torque converter this is 46ft lbs.. here is the place to look if you really want to tq them..

http://ls1howto.com/index.php?category=1
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Old 07-08-2010, 03:42 AM   #4
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Quote:
Originally Posted by 99lssilverado View Post
a good source for this information is a haynes manual for the 1999 thru 2005 silverado/sierra
+1 :d
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Old 07-08-2010, 11:19 PM   #5
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Quote:
Originally Posted by Mangled03gmc View Post
Not being a smart ***. Do you have common sense?? If you do all these can be done with out needing a tq spec

exh. manifold bolts
intake manifold bolts big part here is making sure they are all about the same
throttle body to manifold
motor mount register bolts
motor mounts (to engine and to registers)
tranny to engine
starter bolts
valve covers (doubt exists but figured I'd ask anyways)
coil pack bracket to valve covers

flexplate to torque converter this is 46ft lbs.. here is the place to look if you really want to tq them..

http://ls1howto.com/index.php?category=1
Yes, I find I typically have good common sense...and normally I do everything by feel anyways, but I'm typically not placing a $3K motor in my daily driver either, so I'm taking a few extra precautions to make sure its done right, last thing I need is something f**ked up (common sense???). Thanks for the link tho...much obliged.
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Old 07-08-2010, 11:20 PM   #6
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no prob..
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Old 07-09-2010, 12:44 AM   #7
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They exist.
This is what I found im my GM Service Manual

exh. manifold bolts 11 foot lbs then 18 foot lbs
intake manifold bolts 44 inch lbs then 89 inch lbs
throttle body to manifold nuts 89 inch lbs
throttle body to manifold studs 53 inch lbs
motor mount to block 37 foot lbs
motor mounts to frame mounts 37 foot lbs
Frame side motor mounts through bolts 68 foot lbs
transmission bell housing bolts 37 foot lbs
Transmission to oil pan bolts 41 foot lbs
flexplate to torque converter on 4L60E 46 foot lbs
with a 4L80E 32 foot lbs
starter bolts 37 foot lbs
valve cover bolts 106 inch lbs
coil pack bracket to valve covers 106 inch lbs
coils to bracket 71 inch lbs

Last edited by 1FastBrick; 07-09-2010 at 01:00 AM.
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Old 07-09-2010, 07:20 PM   #8
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Thanks fellas, guess I'm a little over-particular, just a peace of mind thing. I figured they did exist, just don't know how necessary some are, but what can it hurt. thanks again to all tho.
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Old 07-09-2010, 07:20 PM
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