I'm currently rebuilding my motor with an importbuilders b18b block and wanted to know if a cometic headgasket is necessary, i had one on before and the timing belt is a bitch to do with it installed.

 

Unless the Cometic was an inch thick, I'm not sure why a headgasket would effect your timing belt install

 

this was a 3 layer headgasket pretty thick, can I reuse this if it has already been installed?

 

nope..once their crushed, their done

 

If you decide to get the Cometic, order it in advance of when you need it. Most cometic gaskets are special order and the wait is about 2 weeks (from order to your door).

Make sure you get the MLS and not the HP, the HP does not work well with the sleeved blocks.

We have the MLS for $89.95

K

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2K_TEG &raquo;</TD></TR><TR><TD CLASS="quote">Make sure you get the MLS and not the HP, the HP does not work well with the sleeved blocks.</TD></TR></TABLE>

Why doesnt it work well?? I just got it for my sleeved ls. whats the difference between the MLS and HP?

 

hehe i heard this before so i ordered the regular mls for my ge sleeved block. i wanted to know WHY the HP wasn't recommended though all i got for answers was something about the way GE does the machining. Can anybody elaborate on this for me?

 

The GE, and others I think, use a stepped block. The sleeves site 0.004" (I believe) above the deck height. GE does this to aid in sealing the combustion chamber.

The HP headgasket works on the same premise, but Cometic includes what they call a fire ring or bore shim.

One or the other works fine, but the both together is too much and the cylinder doesn't seal.

Hope that explains it. I also PMed back those who sent PMs.

Kyle