Alpha 1 to Bravo 1 upgrade
 

#1
offshoreboat1
Registered


Join Date: Sep 2007
Posts: 13
1987 Chris Craft Stinger 260 Alpha 1 to Bravo 1 upgrade

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Hi,I am going to replace my Alpha One"s with Bravo one"s on my CC Stinger ,
Should I replace my engiinecouplers also? Or can I reuse the Alpha Couplers?
Thanks for help

are the couplers in good shape

bravo's use a larger coupler, alpha's use a small one, you should change them or they will become the weak link.

Do you need the bravo drive? Are you breaking Alpha's? Because in a straight up swap, you will lose a few mph's going from an Alpha to a Bravo.

sorry for late reply
 

Thanks for replys.
Couplers are in A1 condition,
just have bad gimbal housings on Alpha ones,and a good deal on the Bravos.
Replaced the stock 260 Mercs with 383 strokers,so think Alphas wont hold,as I read overhere.
Roland

i have a procharged 350 magnum carbed with some work done 6 psi on my alpha drive just easy out of the hole and no wave jumping. 2 years and going strong runs mid 70's on my scarab 22.

Well, that's 2 years you have had to save your money, because you will need it at some point, alpha's just don't do well with high HP and Torque. but keep up what your doing, it seems to be working.

The other big difference here is weight. You have a relatively light boat compared to the OP. When you add more HP, more torque - and a heavy hull - an Alpha won't last very long.

Heavy boat + stroker + alpha = BOOM!

Mine lasted four trips

If you are asking what you will need. Here is the list.
Bravo Coupler
Bravo Bell Housing
Bravo inner transom plate
Bravo Gimble
Bravo Trim Rams
Bravo Drive

I just did the alpha to bravo conversion on my 242 formula and nothing but the trim pump on the alpha will work. Unless you have time to find deals expect to spend at least $2000-2500 for everything.

Shifter and cables?

My 454/Alpha combo has been on my boat since 1987. No problems (knock on wood).

Someone told me today that the cones on the bravos are easier to get in/out of gear, making docking much more enjoyable.

thanks all
 

As mentioned ,I have payed 2.500 usd for the whole conversion,including 4 23"Mirage props,complete bravos,4 lever shifters flywheel housings,inner transom plates ,engine couplers....
Think I made a good deal overhere...I dont live in the US...
Finally I have peace of mind,or I hope so:grinser010:
Great help from You all,Thanks