installing 0 470R in Cessna 180

installing 0 470R in Cessna 180

Hello,

I am interested in installing an 0 470 R model in a 180 that currently has an 0 470 A model.  Do I need new exhauast?  I understand there is a cowling mod, how involved is this?  Is there a STC for this conversion?  Thanks for you time.

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Re: installing 0 470R in Cessna 180

I did this MANY years ago.

I don't recall any details but:

               1. Seemed quite sraight forward.

               2. I believe we used the same exhaust system

                  ( 2 stud gaskets- unlike most O-470's with 4)

               3. Not sure what authorized the change.

                  Maybe TCDS?

               4. Prop changed also although it was due to a strike

                  & may not be required for a conversion.

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