20r and 22 r motor
11-21-2005, 06:22 PM
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20r and 22 r motor
i just blew up te 22r motor and we got a 20r motor to drop back into my truck is there anything i can swap onto the 20 r motor from the 22r ? i know the intake is diffrent but can i swap carbs ? or heads?
11-21-2005, 06:43 PM
#2
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what year 22R? the 20R will bolt in, but the carb and emissions wiring/hoses will be different. as for the tranny and engine mounts, it's the same as a 22R.
you can put a 20R head on an '81-84 22R and vice versa.
you can put a 20R head on an '81-84 22R and vice versa.
11-21-2005, 07:09 PM
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Intake is different yes. But exhaust is all the same. Depending on what blew on the 22R, you may be able to hybrid the 2 engines.
If you swap the 22R head for the 20R, you'll get an imediate increase in compression
(= more power).
If you swap the 22R head for the 20R, you'll get an imediate increase in compression
(= more power).
11-21-2005, 07:12 PM
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Originally Posted by Bill
Intake is different yes. But exhaust is all the same. Depending on what blew on the 22R, you may be able to hybrid the 2 engines.
If you swap the 22R head for the 20R, you'll get an imediate increase in compression
(= more power).
If you swap the 22R head for the 20R, you'll get an imediate increase in compression
(= more power).
11-21-2005, 09:00 PM
#5
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and no, you won't get a noticeable increase in compression. the combustion chamber on the 20R head is just a tad smaller than the 22R. the main gain is throttle response and it's ability to rev higher, since the 20R uses a smaller ports that go directly to the combustion chamber, instead of around a swirl ledge like a 22R.
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