I have a 2001 Blazer 4.3l looking for torque specs and sequence for the heads. I am im the middle of the job right now. Thanks.

 

http://img341.imageshack.us/img341/82/cylinderhead.png

First Pass In Sequence - 26 ft-lbs
Second Pass In Sequence - 44 ft-lbs
Final Pass In Sequence - 66 ft-lbs

 

Thanks Ryan, thats just what I needed.

 

no problem

 

Ryan, is this correct also for a 1999 Chevy Blazer 4.3L? 1996-2004 should be the same, even though they changed the milling once in that time period, right? And it's the same torque for all the bolts? I only ask because my Haynes manual shows:

Pass 1: all bolts: Torque to 22 ft-lbs.
Pass 2: short bolts: Tighten an additional 55 degrees
Pass 2: medium bolts: Tighten an additional 65 degrees
Pass 2: long bolts: Tighten an additional 75 degrees

Not sure why they chose to describe it that way, but what the hell, man. This method seems far too complicated and prone to error. That's actually what brought me to this post. The last time I had to do head gaskets on this model Blazer, everything worked out okay, but certainly not simple or accurate to make this type of measurement under the hood. Thanks a lot in advance.

 

That is the 'new' bolt tightening. For on vehicle installation, use what Ryan posted above.

 

Thanks for the always solid information, guys. Keep up the good work. This forum is great!

 

Thanks from here too. I'm in the middle of the same kinda project.

 

so youre saying that its ok to reuse the stock bolts? ive always known of tty bolts needing to be replaced once theyve been torqued

 

Don't reuse.... its just that easy. BUY the new ones and save the piece of mind knowing you're not using previously stretched out bolts. if you're really that cheap that u won't pay the few bucks it costs for the set of bolts, you may just end up paying a HELL of a lot more when you do serious damage to the engine. BE SMART and use new bolts - its "Just that Easy!"