84-85 Trucks & 4Runners 2nd gen pickups and 1st gen 4Runners with solid front axles

22r to 20r swap problems

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Old 12-23-2009, 08:10 PM
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22r to 20r swap problems

Doin my first toyota engine swap in my 84 from a 22r to a 20r. i have the motor in and bolted up everythings fine there but im having a little trouble figuring out the vaccuum lines and hoses. i have most of the vac lines figured out but theres one bigger hose under my intake that i dont know where it goes, when i put water in my radiator it comes out of this hose. if anyone could tell me where this goes it would be much appreciated.
Old 12-25-2009, 05:48 PM
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If its the one im thinking of, it goes to the heater.
Old 12-26-2009, 07:56 AM
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it might go to the choke.
Old 12-26-2009, 11:55 AM
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its a larger hose i can stick a spark plug in it with room
Old 12-29-2009, 07:59 PM
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yes it was to the heater thanks
Old 01-08-2010, 08:49 AM
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Hey im a lil curuious as to why your changing a 22r to a 20r?
Old 01-18-2010, 02:42 AM
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Put the 20r head on the 22r block...
Old 04-08-2010, 12:08 AM
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thats what i ended up doin love the power!
Old 04-08-2010, 06:37 PM
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hey, in case anybody wants to know... I'm pretty sure the 20R is the same as a 22R EXCEPT for the bore...

The 20R is a de-bored 22R...

But you wanna try not using a 20R b/c of the smaller and harder to replace carb...

For the 20/22R Hybrid you get a carb adapter from LC Engineering so you can use the 22R carb...

That is all

Good on'ya Missouri...

Last edited by tried4x2signN; 04-08-2010 at 06:39 PM.
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