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restored82 
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Joined: October-11-2006 Location: Canada Status: Offline Points: 37 |
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 Topic: gt40pPosted: July-18-2018 at 6:46pm |
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will gt40 p heads work on a 351 in an 82 ski nautique.I read somewhere the spark plug angle was a problem relative to exhaust manifolds
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Jus Fishin
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JoeinNY
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Joined: October-19-2005 Location: United States Status: Offline Points: 5693 |
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Posted: July-18-2018 at 6:57pm |
You read it on a car site, not an issue on either of the design manifolds you would have possibly had in 82. Some parts change, lots of write ups and builds on this site use them and they are a very worthwhile upgrade. |
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restored82
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Joined: October-11-2006 Location: Canada Status: Offline Points: 37 |
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Posted: July-18-2018 at 9:52pm |
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Thank you Joe I will prep for end of season upgrades
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Jus Fishin
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Fl Inboards
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Joined: January-20-2008 Location: United States Status: Offline Points: 2065 |
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Posted: July-19-2018 at 12:20pm |
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For 351 application you might have to have the head bolt holes opened up if the heads came off a 302..
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Hobby Boats can be expensive when the hobbyist is limited on their own skill and expertise.
1993 Shamrock "fat" 20. 2008 Nautique 196 5.0 |
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MACS81SN
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Joined: May-27-2009 Location: NW OH / S. MI Status: Offline Points: 109 |
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Posted: July-19-2018 at 1:11pm |
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Put a set of these on when I rebuilt the lower end on our 81 some years back. Only had to open up head bolt holes a little. A good dual plane manifold and these heads make a nice performance improvement.
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Mark
1999 -SN - 502 Python 1981 - SN Owned 33 years - Sold 1968 - Mustang - Sold |
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restored82 wrote: