Volvo RWD 140-160 Forum

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B20E Head height 140-160

posted by  Phil S. on  Mon Aug 8 04:46 CST 2005
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last visit: Fri Oct 24 13:18 CST 2014
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It's the piston-to-head clearance that's critical in not having parts "kiss." You're in no danger of hitting the valves, and shaving the head won't cause any problem there. It's the flat top of the pistons hitting the flat surface of the head that's the problem.

So, you have a zero deck and .030" gasket (is that what it crushes to?), so youhave .030: piston-to-head clearance. I usually consider .032" the safe minimum for Mahle pistons on stock rods that have been rebuilt for absolutely even length and then shot-peened to stay that way, for a motor that will see 7000 RPM (forged pistons need more clearance than that). You're pushing it, I'd say...

I thought ITB required stock compression ratio -- ???





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New B20E Head height [140-160]
posted by  Gary L subscriber  on Mon Aug 8 04:23 CST 2005 >


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