Volvo RWD 120-130 Forum

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head choice 120-130 1966

posted by  greezy on  Wed Aug 3 21:57 CST 2011
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last visit: Sun Sep 4 21:21 CST 2011
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I have the head off my b18, and I have a choice. I have 3 heads. All will need some shop work. Which would you use?

Head X is a B18B, 4.425" thick with all the exhaust valves burned. This is the one I just took off. It has big intake valves, about 1.670" diameter, and some porting. It has b20 style valve seals, and maybe b20 valves.

Head Y is a B18D, I think. 3.452" thick. Intakes 1.58" across. Has the old standard b18 stem seals, needs a valve job but not as bad as X. May be the original head that came with this engine, it was on there when I got the car.

Head Z is a B20B. 3.414" thick. No injector pads. Intake valves 1.670". Two exhaust valves have sunk into their seats by about 1/16".

the bottom end is so-so, burns oil but cheaper to just run it for now, I think. I plan on a Delta regrind cam and lifters, and a new cam gear and spacer.

Stellite seats?

What cam, should I get a "C" grind?






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New head choice [120-130][1966]
posted by  greezy subscriber  on Wed Aug 3 21:57 CST 2011 >


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