Cylinder Head Gasket PART # 12498544
06-17-2009, 03:34 PM
#3
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well the other day my friend changed his lifters and we used a caliper and it messured on the old gaskets .053 and then we check the part number 12498544 on top and it messured .051 not compressed with the same caliper so who knows
06-17-2009, 03:50 PM
#4
you would really want to measure at the middle between the 2 cyls...this is where we have measure them and they come in at .056 to .059
but unless you are running into severe issues with milled heads, big cam, etc, then it really does not make much of a difference
but unless you are running into severe issues with milled heads, big cam, etc, then it really does not make much of a difference
06-17-2009, 04:08 PM
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I HAVE 243 HEADS ON A 5.3L AND I MILLED THE HEADS .040 AND I WANT TO GO WITH A SMALLER head gasket TO GET MORE COMPRESSION SO I WONT HAVE TO MILL THE HEADS ANYMORE WHAT DO YOU GUYS THINK OF A .040 GASKET OR SMALLER ???
Last edited by gtrucks; 06-17-2009 at 04:15 PM.
06-17-2009, 04:18 PM
#6
i am not sure i would go anything smaller than a .040 gasket on much of anything. honestly if you do go thinner than a reg gm gasket, then you will still need to check clearances.
have you had the heads checked to see what your chamber size is now?
have you had the heads checked to see what your chamber size is now?
