Volvo RWD 120-130 Forum

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How do you ID a cam? 120-130

posted by  B20Paul. on  Mon Dec 8 19:10 CST 2008
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last visit: Mon Oct 20 10:54 CST 2014
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I'm pretty sure the 1.18" base circle is the right number for all stock B20 cams, maybe someone can confirm that?

No. It varies with lift. When you grind a cam, you aim to have the lobe height the same as the radius height on the middle cam bearing. Smaller than that means it's either a regrind or a stuff up, bigger than that means it likely won't fit in the block.

You can get a great regrind out of A cams because they have the biggest lobes(but you have to stay with stock LCA)





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New B20F cam/lifters in a B18 engine [120-130]
posted by  malloy1  on Thu Dec 4 08:36 CST 2008 >


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