To convert a pro-bout blackjack 55 from gas to brushless.

A substantual amount of cash to buy a big brushless motor, an ESC to match and Lipo's to run it.

Something like this:
http://www.plettenberg-motoren.com/U...M_50/Motor.htm

Regards, Jan.

about 500 bucks (not including batteries)

Personally I would not invest the approx 1k it would take to convert that hull to electric power. Buy a decent hull first as a foundation. Better yet, buy a slightly smaller higher quality hull that will require a smaller and more affordable power system to run well. You'll end up with a higher quality, better handling, and faster boat that you'll be happier with in the long run. just my .02...

What would be smaller better hull i'm not new to rc just boats .

Since i a'm new boats would it be better to go RTR.

Here are some options for you as motorsport has suggested:

http://www.rcslot.com/pc-radio-contr...s/PRB2051.html

http://www3.towerhobbies.com/cgi-bin...?&I=LXRXZ0&P=7

http://www.rcslot.com/pc-radio-contr...s/PRB3751.html

You can set one of these up with your own, quality components to make a fast fun boat. I'm sure that others and myself can suggest running gear if you want to pursue this route.

Or, here are some rtr's that could be considered:

http://www.rcslot.com/pc-radio-contr...s/PRB3750.html

http://www.rcslot.com/pc-radio-contr...s/PRB3100.html

http://www.rcslot.com/pc-radio-contr...s/TRA1502.html

example:

http://www.aeromarinerc.com/index.ph...d=33&Itemid=53

I would say any glass hull meant for .40-.60 nitro power would make a good "cost effective" electric conversion. Doesen't have to be from Aeromarine.

MKM