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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

head gasket holes

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Old Mar 13, 2009 | 09:24 AM
  #1  
mikes350's Avatar
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From: Revelstoke B.C
head gasket holes

Hey , just replacing the head gasket on my 22re , the gasket i've bought doesn't seem to have holes for some of the water jackets , the ones between the bolt holes and the cylinder , this seems odd to me, could you just drill some of them out? i've noticed on a few other threads regarding head gasket replacement that they also don't have the holes, why would this be? is there a reason to not have the coolant flow through from head to block?
thanks
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Old Mar 13, 2009 | 09:30 AM
  #2  
TOYOTA 1's Avatar
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From: oregon
i believe there like that for a reason, mine is like that also.. not sure why though lol.

maybe it slows the water down so it can transfer heat into the water better.

Last edited by TOYOTA 1; Mar 13, 2009 at 09:31 AM.
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Old Mar 13, 2009 | 09:31 AM
  #3  
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From: Here in the PNW
Idk why its like that but i noticed that when i did my HG's the three 22r's i've done still run fine no overheating or lubrication issues.
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Old Mar 13, 2009 | 11:05 AM
  #4  
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From: Revelstoke B.C
i've looked online at a bunch of different pictures, some have the holes there some don't , the last one i replaced didn't have them and its still running fine , not to worried just thought i would see if anyone knew what the purpose was
thanks
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Old Mar 28, 2009 | 01:12 AM
  #5  
KODE's Avatar
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From: HAWAII
Theres a difference in head gaskets between 1984 and 1985 22r/re motors. one year has the holes and the other one doesnt.
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