LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Motor Mounts

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Old 04-16-2009, 05:14 PM
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Default Motor Mounts

I'm gonna go with polys if autozone has them. Any tips on it? I hear its a bitch to do. SHBox doesn't have any instructions...
Old 04-16-2009, 05:20 PM
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My poly mounts from Spohn should be coming in the mail soon. I just did a poly mount swap for my buddy's LS1 last Sat. It takes a while and can be a PITA.
Old 04-16-2009, 05:25 PM
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Originally Posted by ss.slp.ls1
My poly mounts from Spohn should be coming in the mail soon. I just did a poly mount swap for my buddy's LS1 last Sat. It takes a while and can be a PITA.
So I've heard. Know if a good write-up? Or can you give me the skinny?
Old 04-16-2009, 05:47 PM
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Originally Posted by nik1703
So I've heard. Know if a good write-up? Or can you give me the skinny?
Haven't done it on a LT1 before, done it on LS1's many times though.
Old 04-16-2009, 05:53 PM
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Anyone?
Old 04-16-2009, 05:57 PM
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Remove the starter, jack up the engine, remove the motor mount thru bolts, remove the motor mount clamshells, drill out the rivets holding the clamshells together (using a really strong drill - trust me), remove old mounts, insert new mounts (may have to trim them a little to fit, but you can use a knife if you have to), install new nuts/bolts in place of rivets, and then reverse the process.

Once you are trying to lower the engine back onto the mounts try to get one side on (get the thru bolt in) and then get the other side on and torque them both down at the same time. I think the nut on the thru bolt is an 18mm, and the actual bolt head is an 15mm.
Old 04-16-2009, 06:01 PM
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Originally Posted by I8ASaleen
Remove the starter, jack up the engine, remove the motor mount thru bolts, remove the motor mount clamshells, drill out the rivets holding the clamshells together (using a really strong drill - trust me), remove old mounts, insert new mounts (may have to trim them a little to fit, but you can use a knife if you have to), install new nuts/bolts in place of rivets, and then reverse the process.

Once you are trying to lower the engine back onto the mounts try to get one side on (get the thru bolt in) and then get the other side on and torque them both down at the same time. I think the nut on the thru bolt is an 18mm, and the actual bolt head is an 15mm.
Thanks!

Any info on removing the starter?? Can't find anything on SHbox for that either.
Old 04-16-2009, 06:09 PM
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Originally Posted by nik1703
Thanks!

Any info on removing the starter?? Can't find anything on SHbox for that either.
It's bolted to the passenger side of the block with two bolts You'll see them once you get under the car. Just unbolt it and move it out of the way.
Old 04-16-2009, 06:14 PM
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Originally Posted by ss.slp.ls1
It's bolted to the passenger side of the block with two bolts You'll see them once you get under the car. Just unbolt it and move it out of the way.
Okay. south end of the block or east? what's the reason for removing it?
Old 04-16-2009, 06:21 PM
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Originally Posted by nik1703
Okay. south end of the block or east? what's the reason for removing it?
http://shbox.com/1/starter.jpg

Passenger side, at the bottom rear of the block.
You move it out of the way to have better access to the motor mount. Don't know if having LT headers will make the job easier or harder. I'll find out soon.
Old 04-16-2009, 06:28 PM
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Originally Posted by ss.slp.ls1
http://shbox.com/1/starter.jpg

Passenger side, at the bottom rear of the block.
You move it out of the way to have better access to the motor mount. Don't know if having LT headers will make the job easier or harder. I'll find out soon.
ive got shorties i think, which should help. i'll do the job sunday and take some pics, maybe put a DIY together.
Old 04-16-2009, 06:58 PM
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dude not to be a dick but you think you have shorties? and you needed someone to tell you were the starter was? i dont think you are in a position to write a dyi on motor mounts. better take her to a shop
Old 04-16-2009, 07:04 PM
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Originally Posted by jankie93z
dude not to be a dick but you think you have shorties? and you needed someone to tell you were the starter was? i dont think you are in a position to write a dyi on motor mounts. better take her to a shop
whoa there man. mods were on my car before i bought it- so yes i think i have shorties.

i am new to LT1's, but i am no mechanical slouch. If i post pictures, people can learn from my mistakes before they start.
Old 04-16-2009, 07:07 PM
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Originally Posted by nik1703
whoa there man. mods were on my car before i bought it- so yes i think i have shorties.

i am new to LT1's, but i am no mechanical slouch. If i post pictures, people can learn from my mistakes before they start.
That a good mentality. Post here if you have any questions.
Old 04-17-2009, 01:13 AM
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Originally Posted by nik1703
whoa there man. mods were on my car before i bought it- so yes i think i have shorties.

i am new to LT1's, but i am no mechanical slouch. If i post pictures, people can learn from my mistakes before they start.
I don't think he was trying to be a complete dick, but not knowing if you have shorties or longtubes and not knowing where a starter is says a lot about your mechanical abililities. Good luck with it, and I'd unhook the battery before you start so you don't short out the power wire on the start and have a spark show.
Old 04-17-2009, 06:45 AM
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Originally Posted by skinnies
I don't think he was trying to be a complete dick, but not knowing if you have shorties or longtubes and not knowing where a starter is, says a lot about your mechanical abililities. Good luck with it, and I'd unhook the battery before you start so you don't short out the power wire on the start and have a spark show.

Took the words right out of my mouth!!!



I have the OE exhaust system on my LT-1, and when I did the motor mounts, I pulled the front part of the exhaust, just to add work room, as I have pretty big hands, and there isn't a lot of room down there.
Old 04-17-2009, 10:15 AM
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With shorties you should be ok, but you might have to pull the y-pipe to get this done.
Old 04-20-2009, 04:10 PM
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So - i went to autozone and they wanted 120 a PIECE!!!!!!!!!!!!! ridiculous! WS6Store.com has them for what appears to be 50$ for both, are those worth picking up? there's no way in hell that i'm spending 250 for some chunks of rubber
Old 04-20-2009, 04:12 PM
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Originally Posted by nik1703
So - i went to autozone and they wanted 120 a PIECE!!!!!!!!!!!!! ridiculous! WS6Store.com has them for what appears to be 50$ for both, are those worth picking up? there's no way in hell that i'm spending 250 for some chunks of rubber
Polyurethane

JK.

I got mine from Spohn for $53.
Old 04-20-2009, 04:30 PM
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Originally Posted by ss.slp.ls1
Polyurethane

JK.

I got mine from Spohn for $53.
I'll have to do that, 120 a piece of crazy. autozone is really hit or miss.


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