1971 - 1979 powerhead question

Fishin4fun

Seaman
Joined
Mar 3, 2004
Messages
66
ok a couple of you smart guys advised me correctly on the 1985 powerhead swap onto my 1979 midsection and lower unit. Thanks, now I am trying to help someone else out.<br /><br />He has a 1971 I6, I have the 1979 (distributor) I6, will the 1979 I6 bolt right up in the place of his 1971 I6? His powerhead has froze up or is having significant problems. the 1979 has balanced compression in the 140lb area and runs strong. I opted to go to the newer 1985 for multiple reasons, not related to this question.<br /><br />PLEASE ADVISE if this swap will work for the 1979 powerhead to replace the 1971 powerhead.<br /><br />Thank you kindly!
 

ZmOz

Captain
Joined
Aug 13, 2003
Messages
3,949
Re: 1971 - 1979 powerhead question

I'm mostly sure that it will not, but I could be wrong.
 

Gold Bear

Petty Officer 1st Class
Joined
Sep 26, 2001
Messages
224
Re: 1971 - 1979 powerhead question

Fishin4fun <br /><br />I believe ZmOz is correct. I think the lower powerhead bolt pattern changed from 1972 to 1973.<br /><br />The guys at Scream & Fly can probably shed some light on this.<br /><br />Regards,<br /><br />Gold Bear ;)
 
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