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2wd/4wd head

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Old 16-11-2011, 05:27 PM
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mattman1234
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Default 2wd/4wd head

My engine is currently 7.5.1 cr with a 4x4 head if i change to a 2wd head would this make much difference to performance.its an msd 380 chip
Old 17-11-2011, 04:55 PM
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anyone
Old 19-11-2011, 04:31 PM
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what does a skimmed 2wd head have to measure ,to equal a std 4x4 head
Old 19-11-2011, 05:11 PM
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Cossie Sean
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you would have to change the map or the ignition will be well out mate and the CR will drop very low on yours.

https://passionford.com/forum/genera...unskimmed.html
have a look at this thread, hope it helps.

Sean.
Old 19-11-2011, 06:42 PM
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YBJ
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From memory I once read that putting a 2WD head on a 4x4 engine lowered the CR from 1:8.0 to 1:7.8
Old 19-11-2011, 07:26 PM
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thanks for the info chaps,will have a look
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