What Allison to get?

[MacCTD]

Interested in getting an older Allison to repower with a new Mercury V8. I have never had a go fast style bass boat but have always heard good things about Allison and like the look of them. I am the Northeast so there are not many around here either. Is it possible to get an older nice clean boat without power that can handle a 250hp motor for around $10k-$12k?, if so what model and year would you recommend, the bigger the better, not concerned with absolute top speed.

[AllyFishing]

The V8 4 stroke outboards are the new breed. It will be well suited for the XB21 (newer hulls) but I do not have enough knowledge first hand on hanging the weight of a new V8 on an XB2003?? I've seen plenty of 3 liter 2 strokes on the 20 foot hulls like the XB2003 and Grand sport but those motors weigh in at 505. Mr. Allison never intended the grand sport or the XB2002/XB2003 hull to be paired up with anything other than the 2.5 liter 2 stroke motors of the past. Times have changed and many Allison owners have been experimenting with 3 liters but setback modifications are in order to "safely" run those motors. The newer V8's are heavier and this is virgin territory.

[motobuffy]

Add the XTB 21 to the list of the "unknowns with new 4 strke power." The XB21 series will be more than double your 10 to 12k range.

[K-DAWG]

I would not hesitate to put a new V-8 on the back of my 2003. I am now running a 3.0 liter Pro XS and love it. As far as set back. I changed to 5.5 and the boat would not run right. I was told to move it in by a lot of different Allison guys. I moved it back to 12 and she runs great. Getting ready to go back to 14 inches.

[NOTGSXR]

Maybe an XTB is your best bet.

[MacCTD]

Thanks for the info so far, where would be a good place to look for a used Allison? BTW the V8 4 stroke 250hp Pro XS is the same weight at 505lbs.

[Squire]

Interested in getting an older Allison to repower with a new Mercury V8. I have never had a go fast style bass boat but have always heard good things about Allison and like the look of them. I am the Northeast so there are not many around here either. Is it possible to get an older nice clean boat without power that can handle a 250hp motor for around $10k-$12k?, if so what model and year would you recommend, the bigger the better, not concerned with absolute top speed.

here is a 2016 that has never been rigged for 25k. https://www.sandersonmarine.com/alli...ats-sales.html

[K-DAWG]

here is a 2016 that has never been rigged for 25k. https://www.sandersonmarine.com/alli...ats-sales.html

I am pretty sure the 25k is for the XR-2002 and not the XB-21.

[Strokerdean]

That's the same weight as a 3lt 2 stroke, such as the 250 pro xs.

Thanks for the info so far, where would be a good place to look for a used Allison? BTW the V8 4 stroke 250hp Pro XS is the same weight at 505lbs.

[cruzintld]

If you do go the XTB21 route. I’ve been thinking of sellng my 1993.
They are great riding boats. Use it as an all around boat for the kids and fishing.

[cajunrgfm]

I would not hesitate to put a new V-8 on the back of my 2003. I am now running a 3.0 liter Pro XS and love it. As far as set back. I changed to 5.5 and the boat would not run right. I was told to move it in by a lot of different Allison guys. I moved it back to 12 and she runs great. Getting ready to go back to 14 inches.

I run 12" bobs hyd. With 300 promax,(actually better than a 300pm block,250xb 300ecu,light flywheel,o/shore 3 ram mid and alien cowling) heads,ecuno issues 28p ally cut chopper,loaded for tournament,cruises 70mph@5k. There is no holeshot lag, just press the pedal and she's on her way,also idles@3mph for side imaging, and 35mph for comfortable cruising. Thats just my TM stock lower. Havent had it past 80 til i cone a TM.300PM weighs 445lbs. Not much more than my 225x w/sporty