Volvo RWD 120-130 Forum

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Need Help ID'ing a B20 Head 120-130

posted by  someone claiming to be tommyt544 on  Mon Apr 20 21:29 CST 2020 [RELATED]

All this info is helping me better understand what I have and what I should do with it. I thought maybe the best thing was to sell this B20B head or potentially trade it for a ported B18B head that would simply bolt on. Maybe I should keep it...

Would you shave the head to B20E specs?

You mention that porting it is dangerous. Are there specs out there that would help a machinist only take the right amount off?

Sounds like a valve grind and cut would help.

I need to do a new compression test. I did one immediately after putting it on the B18 block and only had 120PSI which seems oddly low. I'll warm up the engine fully and hopefully the valves had some time to seat themselves. I don't mind putting 91 premium octane (Shell here in Canada) as it's one of the few without ethanol.






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New Need Help ID'ing a B20 Head [120-130]
posted by  someone claiming to be tommyt544  on Sun Apr 19 12:53 CST 2020 >


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