LU dimensions help

[starcraft1982]

Im looking to go from 21p to 23p prop on my 1988 blackmax 150xr4.I read one description on ebay of a prop that concerned me a little.It said "this prop will fit all v6 outboards 150 to 250hp(except xr4).so my question is why?is it just an issue of re hubbing the prop or is their dimensional issues i should be aware of when selecting a prop.is the diameter of this lower different than all other 15 spline after 78 motors?thanks

 

[starcraft1982]

Re: LU dimensions help

moderator,please feel free to delete one of my threads as i posted similar in props forum.i posted in props first but after thinking a little i thought it might be more appropriate here.if its better in props then delete this one.i dont want to clutter forums,i really just wasnt sure where would be best.thank you

 

[Faztbullet]

Re: LU dimensions help

The reason is the Xr4 if it has the original lower unit uses a "inline" style prop as the gearcase is only 4.25 dia as the standard V-6 is 4-3/4 dia..

 

[starcraft1982]

Re: LU dimensions help

so,forgive me,does that mean a specific prop must be purchased,or is that a re hubbing issue?i dont mind getting re hubbed if thats what it needs,but i just got a mirage 3 blade on ebay and now not sure it will work when i get it!good i only paid $82 shipped.i can at least sell it! Most new props state for v6 outboards 1978 and newer.No mention to "except for"anything.SO,what are my options?

 

[Faztbullet]

Re: LU dimensions help

No rehubbing wont help as diameter is to big, look for a high pitch "inline" prop