Volvo RWD 120-130 Forum

INDEX FOR 2/2026(CURRENT) INDEX FOR 1/2008 120-130 INDEX

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Hey, engine builders, I need some guidance. 120-130 1966

.013" on the exhaust means that it would like a bigger exhaust lobe and/or the cam needs advancing. At TDC on overlap, is the intake open further that the exhaust? Have you checked the timing to what the greenbooks say?

I was wrong about the spring, looks like all B20's do have the same springs. I was reading a 164 greenbook recently & they have two different springs for B30A's & B30E's which is strange to me considering they both have the C grind.

Are you allowed to modify the springs in any way?, a shotpeen can stiffen them up a little. I think I'd be putting newbies on the intakes & moving the old intakes to the exhausts, that would halve your spring costs.






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New ANSWERED Hey, engine builders, I need some guidance. [120-130][1966]
posted by  sdewolfe subscriber  on Thu Sep 20 10:27 CST 2007 >


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