i have the blue gasket for the fuel block off plate, but do you use silicon on it too black rtv?
-also, is there a specific patternt that you bolt on aluminum 350 heads..i know you have to finger tight, then torque in about 10 incrimetns till you get to 65 lbs.....let me know. thanks

 

The heads must be torqued in sequence, if you expect them to not blow head gaskets. www.nastyz28.com and www.mortec.com both used to have specs for this, and so do the chiltons manuals. Follow it, if you want it to last. You only need to 3 step it. I usually do it 25lbs, 45lbs, 65lbs. I have done it in a two step also 35lbs, and then 65lbs, without issue.

 

thankyou. I appreciate it.. anybody know if you are supposed to use the ultra RTV on the fuel vlock off? thanks -

 

RTV works fine on that.

 

so you are supposed to? or just have the gasket dry?

 

Definately RTV it. It is a gasket item that provides oil retention, so better safe than sorry.

 

that's what i thought,,,,but i guess not much since you torque it down to like 25lbs or something. i don't want it all to squish out. I'll just put on a thin coat. thanks man

 

so, a thin bead? also,....I can't find the head torque pattern on those sites...anyone else know where to find it?

 

I found this online:



http://www.boxwrench.net/specs/chevy_sb.htm

 

am i supposed to use RTV on the head gasket?

 

No.

If you want to use a metalized paint such as aluminum or Copper Coat, that's okay. But, no RTV or other gasket sealer.

 

hmmn mettalic paint???? how about on the front seal? where it touches the timing cover