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Removing heads

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Old Mar 12, 2010 | 02:07 PM
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Default Removing heads

Looks like I will be pulling the heads off my LS6 this weekend.

Is there a particular sequence to loosening the bolts that I need to follow to safely do this ? I am wondering if I should find the torque sequence and just follow it or is it necessary.

Thanks
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Old Mar 12, 2010 | 04:04 PM
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No sequence in removal. Only on install.

Good luck with the power steering and alt bracket. The power steering line uses an 18mm wrench. The flare wrench I used kept spreading so a regular wrench was used and worked great.

Also, the bottom edges of the heads (that touch the block) are like razors. I got a nasty slice lifting the head away from the engine. Wear gloves and/or be careful.

Also, there is a bolt on the back of the passenger head that has a loop holding the wiring harness and it's a royal pain, I believe it's 13mm. Also the ground strap on the back of the drivers head isn't easy either.

Have plenty of beer on hand... good luck!!
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Old Mar 12, 2010 | 05:24 PM
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You don't need to disconnect the PS lines to pull the heads, do you? It's not like changing cams.
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Old Mar 12, 2010 | 06:35 PM
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Be it superstitious or just cautious,,,I always break the torque off the heads in the reverse torque order. I have NEVER had a head issue.

Thats just my 3 CENTS!

BC
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Old Mar 12, 2010 | 06:57 PM
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Originally Posted by Bill Curlee
Be it superstitious or just cautious,,,I always break the torque off the heads in the reverse torque order. I have NEVER had a head issue.

Thats just my 3 CENTS!

BC

I too followed the reverse order when removing the cylinder heads off of my brothers LS1.
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Old Mar 12, 2010 | 07:06 PM
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Originally Posted by zeevette
You don't need to disconnect the PS lines to pull the heads, do you? It's not like changing cams.
No, you don't.

Just unbolt the bracket from the head and push the bracket/pump/reservoir assembly forward and out of the way.

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Old Mar 12, 2010 | 08:45 PM
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Thanks for the feedback guys I played it safe and did the reverse torque order. I managed to get the job done without a trip to the hospital for stitches and I only cussed a few times !
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Old Mar 13, 2010 | 10:24 AM
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ls1howto.com - there is a write on removing the heads. I started from the middle and worked my way outwards when I did mine.
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Old Mar 13, 2010 | 10:57 AM
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Glad you got it done!

I took the ps pump and alt bracket off because it was all going to be polished. I guess I didn't pay attention to the fact of just sliding them forward for head removal. Sorry for the bad advice. :o

I've got one cylinder head pocket ported and the exterior fully polished. I'm working on the ps pump and then alt bracket before I tackle the other head.
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