anyone know the removing and tightening sequence for our head?

 

isnt it always center out for tightening???? or am i wrong...

 

well theres a removing sequence i'll need to know to remove the head first and center out is for a small block im not sure about our head

 

realy? id assume just opposite of putting it on so start out work your way in.

 

well i don't want to warp my head so i'll just wait until someone accually knows

 

removal sequence:


(sorry it's so big)

 

thanks man where did u find this at?

 

Removal


Install is opposite

*edit* someone beat me lol

 

hey thanks anyways

 

no prob.

I'm a gm tech....so I just got it off dealerworld (service info)

 

i c thats cool

 

subscribed. anyone know the torque specs for the 1-4 little bolts? i couldnt remember or find them in my book last time i put it back on so just torqued them to almost 30 ft lbs

 

would you also know the torque specs for the head bolts?

 

100 ft lbs. 3-step for the head bolts

 

thanks what u do 30 60 100??

 

i did it 33, 66, 100 but i heard of other ways to do it closer to the numbers you said. i know someone that did like 35, 70, 100 n he doesnt seem to have any problems

 

22 lb -ft on all first pass
155 degrees additional on the second pass.

The 4 inverted torx bits on the front of the head are 26 lb -ft

 

thanks man. lots of help

 

thanks

 

Can anyone help me out. I have an 09 ss. Stock. I'm gonna get a new head gasket. So far I know the first 4 bolts are at 26 ft lbs? And the rest at 100 ft lbs? On 3 steps? And I know the removal order, but I got confused on the installation order. Some one said it's the opposite but I'm not sure what is it exactly explaining.

 

See attachment (PDF) it shows everything, you don't have to have special tools, it just makes it easier when timing bc with them you don't have to remove the front cover. otherwise you retime the engine normally. theres 10 bolts that go to 22ft lbs then turned 155 degrees. At minimum do the process in two steps. 1st pass to 22 ftlbs 2nd pass 155 degrees.

But I personally recommend going in 4 steps to reduce chance of head warp.
1st pass 22ftlbs, 2nd pass 50 degrees, 3rd pass 50 more for 100 degree total, and then the 4th and final pass of 55 degrees for a total of 155degrees. follow bolt sequence in attachment for each pass, then after you have those 10 bolts done do you tighten the four front bolts to 26 ft lbs.


gsi.ext.gm.com - showDoc.pdf