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cossy heads

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Old 20-01-2010, 09:14 PM
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tommytxr
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Default cossy heads

if a cossy head (2 or 4wd) is skimmed once too many times can it be used for n/a ,and 1 other thing what point (in mm) is a head no good to used for turbo
Old 20-01-2010, 09:18 PM
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LHD220Turbo
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138.68mm for turbo is the minimum, BUT many have been used beyond this - its the valve seats that become dangerously thin

Last edited by LHD220Turbo; 20-01-2010 at 09:21 PM.
Old 20-01-2010, 09:19 PM
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Toe Knee
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oficially by the tech guide its 138.68mm but people use them with more meat taken off and no problems!! can be compensated for in other ways.and yes people use skimmed head for N/A use!!
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