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B18 and B20 head differences

posted by  walrus3 on  Sun Oct 17 10:12 CST 2010
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last visit: Mon Dec 2 14:20 CST 2013
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Look in through the oil filler. If there are rubberlike caps over any of the valve spring retainers,
it is a B18 head. None of the B20 heads have those.
Also very few B18 heads have the boss on them for an air conditioner belt idler/tensioner
pulley mount.
The Valve stems on the B18 are 11/32". B20 has 5/16" or 8mm valve stems.






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New B18 and B20 head differences
posted by  Dim-Wit  on Sat Oct 16 13:09 CST 2010 >


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