Generation IV Internal Engine - Removing heads off LS3

Hey guys, I'm looking to remove the heads to send to Lingenfelter. Need to know if I remove the bolts in any type of sequence? And If do, what would the sequence be? Or does it not matter?

Thanks for the advice,

Nate

It doesnt matter until you put them back on.

Thanks, the reason I asked is because I saw the video showing the process. Here is the link http://www.youtube.com/watch?v=H1TrTB8iJ1k

It said to removed them in a sequence. They post a picture but I can't tell what the sequence is do to the poor quality. Heres the picture.

http://i1231.photobucket.com/albums/ee508/AL7319/1234.png

You can see its very hard to make out the numbers.

I looked up the sequence for reinstalling the heads and they don't come close to match the same pattern.

http://i1231.photobucket.com/albums/ee508/AL7319/345-1.png

I just wanted to confirm because this will be for first time I tackled this and I don't want to awesome anything since I don't know what I don't know, LOL.

any other input would be greatly appreciated!

If you look, it's almost the reverse pattern as the TQ sequence. Most likely the video was made by someone so clueless that the just figured if the bolts get tightened in an sequence, they must have to get loosened in the reverse seq... Sigh.. Internet geniuses....

LOL, your right! So I'm just going remove all the bolts in no certain pattern and off we go. Thanks for the help! :thumb:

Remove the bolts in reverse of the installation sequence. In otherwords 15 is first bolt, 14 second, ect.

It doesn't matter in what sequence you remove the bolts!

Just make sure those bolt holes are DRY when you install the heads and start torquing them down. If they aren't you will crack that block.

Ps Nate do you have a C5 vette?

It doesn't matter in what sequence you remove the bolts!

Just make sure those bolt holes are DRY when you install the heads and start torquing them down. If they aren't you will crack that block.

Ps Nate do you have a C5 vette?

Thanks for the tip. I have a 2011 Camaro. At the time I create my account, thats handle I choose but I see how it now how it could be confusing. If I could, I'd change it to Nate5thgen today.

Thanks again.

I going to get chaser to clean the treads before I reinstall the heads to make sure the thread are clean. I'm also using ARP's stud kit.

Any other tips would be greatly appreciated! Thanks again guys.

I knew it!
Please do change that, lol C5 is a corvette!
Please don't get sucked into the stupidity over at Camaro5!

It doesn't matter in what sequence you remove the bolts!

Just make sure those bolt holes are DRY when you install the heads and start torquing them down. If they aren't you will crack that block.

Ps Nate do you have a C5 vette?


By the way, how do you mean by DRY? I think I know but the last thing I want to do is assume anything.

Thanks again for the help!

Make sure the holes are clean and dry. No oil, water, etc. If you tighten a stud or head bolt into a hole that has fluid or debris it could (most likely will) crack your block. I've used a drinking stray hooked to a shop vac to double check the holes, followed by a final inspection just before I install the heads/studs.

Bob K.

Thanks Bob, after pulling the heads, I learned by reading on one of the LS how to books, that I should had drained the coolant out of the top end of the engine by removing the two drain plugs at each side of the engine before removing the heads. That this would keep the coolant from drooling into the cylinders and blind tapped head bolt holes.

Is said that this was critical as any fluid in the blind holes increases the risk of cracking the block when the head bolts are reinstalled and torqued.

So, since I didn't know to do this, now I'm nervous that fluid might have gotten into the bolt holes.

Any recommendation what I should do being that I'm now dealing with it after the facts.

Thanks again guys for the help!

Use a compressed air nozzle to blow out the holes, then follow up with a shop vac, also cleaning out any debris that made its way into the cylinders.