Hello my name is Harry. I have a 1995 chevy blazer 4.3 vortec. thiis weekend i am replacing a cracked lower intake. I am looking to get help with the torque specs for the bolts on the lower intake(this would be the intake that the spider sit in). there are 8 bolts holding it on.I have the bolt tighten order but the front of my haynes manul is missing, so I can't look up the specs. Please help.

 

*MOVED* to 2nd Gen Tech

 

You might see if Autozone.com has that info. Look under repair guides and put in your year, make & model.

 

Starting from the front( toward radiator) left(passenger side) the and going around, the bolts are numbered 7,1,3,5,6,2,4,8 where 8 is the front right, 5 is back left and 6 is back right. I know you said you had them but i wrote them so you can insure that my manual is the same as yours. On page 2A-3 is says year 88-95 35ftlb. No sequence listed. On 96-00 there is a three step process listed as 1)27 inlb 2)106 inlb 3) 30 ftlb. I have also read that if you should follow the bolt holes with a tap to get a nice even torque. Good luck

 

terry tried Autozone on-line free manuals the do not have that year posted.
thank you

 

Jstutzman thank you that was very helpful. will post results when done.

 

If you cant find what you need, i could photocopy some pages if you need them and email them too you, just let me know before tomorow night.

 

could you please to harrygees@yahoo.com, also not to be a pain in the butt, I have new bolts but do you know the tap size? that would be all that i need. thank you

 

Upper Manifold bolt tightening sequence:

Final torque of 124 in-lbs.

Lower intake tightening sequence:

Final torque of 35 ft-lbs.

 

My book shows exactly what is pictured above with the same specs. I guess what i wrote earlier with the 8 bolts are for 96 and above, but it does not give a size for the tap , it just says use the proper size.