pulled the intake manifold on the vette...its an aluminum headed l98 i just need to know the torque spec to tighten it back down to..does anybody know?????i couldnt find the answer on line at all so please helpp

 

nvm i found out its 35lbs

 

I agree, 35 ft-lbf. I torque my intake in two stages, first 20 then 35 ft-lbf.

 

sounds like a good way to do it, thats what imma be doin then...thankss

 

AND, work from the two center bolts on each side to the front and rear bolts. In other words, get the sequence correct. Another AND, get a smear of silicone sealant on both sides of the gasket and a good tab at the corners where the heads meet the block & intake.

 

rtv black yeah???and then i can you permatex 2 for the bolts

 

i just noticed i had 8 short bolts and 4 long ones for my manifold and i didnt label or remember where they went lol

so i would assume the shorter ones go on the outside of the coolant passages...is that right??and will it make much of a difference if i did it a different way?

 

The smear of silicone that I am talking about goes where the coolant crossover is on the intake manifold. Remember just a smear. I am not familar with your intake; the location of the longer bolts should be fairly obvious. Do you have a remote coil to mount or some other device?

The silicone sealant should say "safe for O2 sensors" or something similar.

I do put silicone sealant of the bolt threads also. All of them.

 

everythings done and still no leak so i am very happy