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B18 rebuilding update and questions 120-130

uid 4433's pic
posted by  patrick of montreal on  Wed Nov 21 04:33 CST 2012
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last visit: Sat Oct 18 08:25 CST 2014
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for all I know it does suffer from the combo....it was all I had at the time and that was 20 years ago and it still works. Engine has done hard service 8 months a year since, can go 100+ mph, seems to breath OK. If I ever get into valve problems I'll probably change heads, the B20 exhaust header really helped.
First I have heard of thin walls on the B18....I thought that was a problem with boring B20 out to 21.
Off the top of my head, I'm pretty sure the B20 block was essentially a bored out B18 block at least for the first few years of production. With luck more knowledgeable folk will chime in.
--
Patrick, '68 220 (used to drive 240s) '53 GMC 4104






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New B18 rebuilding update and questions [120-130]
posted by  DBS  on Fri Nov 16 20:37 CST 2012 >


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