Volvo RWD 120-130 Forum

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Bell housing bolt size 120-130

I have a another B 20 motor (B 20 F) that I want to overhaul before putting in to my 122S.. My question is,, does anyone know the size and pitch of the bolts that bolt the bell housing to the engine as we have an engine stand that we want to use.. The car is a couple miles away from the garage so it is not that practical to remove a bolt from the car..Just a lot easier to go to town and pick up the proper bolts.. Thanks !!








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Bell housing bolt size 120-130

Most of them are 7/16"-14 UNC.
A very few of the latest ones are M12-1.75
DO NOT attempt to use 7/16" bolts in an M12 hole although they screw in easily-
They do NOT have enough thread engagement to hold the weight of the block safely.
--
George Downs Bartlesville, Oklahoma








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Bell housing bolt size 120-130

Thank you very much for your help.. That will certainly take the guess work out of it..







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