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241 heads leaking coolant

This is a discussion on 241 heads leaking coolant within the Internal Engine forums, part of the LSx Technical Help Section category; I have a stock 2000 SS with 241 heads that are leaking. D.side is leaking into the crankcase from a ...

  1. #1
    Junior Member ls1k5's Avatar
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    black
    84 K5 Blazer w/ LS1

    Angry 241 heads leaking coolant

    I have a stock 2000 SS with 241 heads that are leaking. D.side is leaking into the crankcase from a crack near the #3 head bolt and P.side is leaking from the #2 exhaust bolt. The motor ran perfect but lost water and the oil never got to the milkshake point. I'm leary of putting another set of 241s on it if it is common, has anyone else had this problem?

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    Senior Member bills98ta's Avatar
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    1998 Trans Am

    The front & rear exhaust bolt is kind of normal. I usually put a little ultra black on the threads. Now the head bolt might be a bad head gasket.

  3. #3
    cutting and welding mark21742's Avatar
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    hugger orange
    2004

    241s aren't known for problems (I'm running a set of ported and milled 241s myself...but if on is actually cracked this would be a good time to upgrade to a set of 243s or aftermarket heads

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