Hi Five Hub Size?

[keeper]

Hi Guys!

I Called Mercury And 1st Guy I Talked To Said All High Five Props Are Small Hub. I Called Back With Another Question And 2nd Guy Told Me There Are Large And Small Hub High Fives. So I Am Not Calling Merc Anymore. I Should Have Come To You Guys First. My Motor Is A 1977 Merc 1750. Merc Says It Should Have The Large Case (4 3/4 Opening), But It Has The Small (4 1/4 Opening). The Prop Coming Off Measures Exactly 4 Inches Across Hub. The High Five I Want To Buy Measures 4 1/4 Across Hub. Can Someone Please Tell Me If This Is A Small Hub Or Large Hub Prop? Part # 48-815760-21. It Seems To Me If It Was A Large Hub Prop It Would Measure Closer To 4 3/4. Any Help Would Be Greatly Appreciated.

Thanks

Mark

[catfish123]

I believe the odd size pitches such as the 21 are large hub props and the even sizes such as a 24 etc, are small hub props.

[MODXR6]

catfish may be correct. I know on the older ones that don't use the flotorq were that way. Even pitches = small hub & odd pitches = large hub.
Don't know about them since they went to the flotorq though.

[an86carrera]

I have a 20" High Five flo torque and it is a small hub. I understand that odd pitches are large and even are small hubs too.

BTW my 20" is for sale.

[j_martin]

The odd sizes are large hub, and the even sizes are small hub. The steepest small hub is 24".

Small bore (4 1/4") are about 4 inches across the tube, Large bore are about 4 3/8 " as I remember.

If you look them up in the mercury parts direct, you will find the large size listed as for v6's, the small size are listed in the 3 and 4 cylinder stuff.

I'm running a 24" high 5 on a 88 150 XR4. It is a small hub lower.

I love the prop. Hole shot to die for even with the engine high, and ssmmmooooootttthh as silk.

hope it helps
John