Has anyone done this with any success?

I believe there is an adapter available that makes things easier

Iv done it both ways around . Problem is , the powerbox head is a couple mm longer than a Tuttle . Both same width at board level at 16mm. So if there is an adaptor you would need to grind some off the ends . If you were to mould a new head around the old one make sure its resin , not plastic , because it wont stick . Also put double barrel nuts in . You would need to make sure the new nuts are in the main fin part that goes in the head or the fin will easily snap out . It can be done but it's a lot of work .

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Imax1 said..
Iv done it both ways around . Problem is , the powerbox head is a couple mm longer than a Tuttle . Both same width at board level at 16mm. So if there is an adaptor you would need to grind some off the ends . If you were to mould a new head around the old one make sure its resin , not plastic , because it wont stick . Also put double barrel nuts in . You would need to make sure the new nuts are in the main fin part that goes in the head or the fin will easily snap out . It can be done but it's a lot of work .

Thanks Imax, what are double barrel nuts?

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Rodskeg said..

Imax1 said..
Iv done it both ways around . Problem is , the powerbox head is a couple mm longer than a Tuttle . Both same width at board level at 16mm. So if there is an adaptor you would need to grind some off the ends . If you were to mould a new head around the old one make sure its resin , not plastic , because it wont stick . Also put double barrel nuts in . You would need to make sure the new nuts are in the main fin part that goes in the head or the fin will easily snap out . It can be done but it's a lot of work .

Thanks Imax, what are double barrel nuts?

2 barrel nuts . The brass things the screws screw into . Tuttle use 2.

whitelionwindsurfing.blogspot.com/2011/03/diy-fins-power-box-to-tuttle-head.html

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Imax1 said..

Rodskeg said..

Imax1 said..
Iv done it both ways around . Problem is , the powerbox head is a couple mm longer than a Tuttle . Both same width at board level at 16mm. So if there is an adaptor you would need to grind some off the ends . If you were to mould a new head around the old one make sure its resin , not plastic , because it wont stick . Also put double barrel nuts in . You would need to make sure the new nuts are in the main fin part that goes in the head or the fin will easily snap out . It can be done but it's a lot of work .

Thanks Imax, what are double barrel nuts?

2 barrel nuts . The brass things the screws screw into . Tuttle use 2.

of course, sorry I thought that it might have been a special type