Volvo RWD 444-544 Forum

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2 questions 444-544

uid 5771's pic
posted by  skeet on  Wed May 26 00:18 CST 2010
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last visit: Mon Mar 25 22:30 CST 2013
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Can anyone advise what the measurement for standard head thickness and intake/exhaust valve diameter(measured at the top of the valve) should be? This is a 1964 B18 head. I am trying to determine if the head/valves have been modified. Thanks, Skeet








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2 questions 444-544

posted by  walrus3 on  Wed May 26 04:23 CST 2010
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(Old age is catching up with me!)
All B18B and B18D have 40mm (1.58") intake valves and 35mm (1.38") exhaust valves.
Info from same manual.
Best regards!
--
George Downs, Bartlesville, Heart of the USA!








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2 questions 444-544

posted by  walrus3 on  Wed May 26 04:19 CST 2010
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The dimensions you want are probably the head thicknesses.
These are out of the B18 B/D service manual dated 2/69, TP10115/2.
B18B type I 87.0 mm (3.425")
Type 2 and 3 86.2 mm (3.394")
B18D 88mm (3.465")
Hope this is helpful.
--
George Downs, Bartlesville, Heart of the USA!








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2 questions 444-544

posted by  Volvo From Heck on  Wed May 26 06:58 CST 2010
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last visit: Mon Oct 13 20:56 CST 2014
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If it's the valve stem diameter you are after---B18-more than 8mm-----B20-8mm (5/16"). Not precise measurements, I know, but should be close enough to find what you have there. - Dave







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