Retrofitting from Alpha 1 to Bravo 1

[tank1949]

First, are the transom bolt patters the same? Or, will I have to fill in holes and redrill to use Bravo drives? Can I use existing couplers from Alphas? Will controls need to be changed/retried?

 

[Bondo]

Ayuh,.... The transom holes are the same as the Alpha, Gen.II,....

Ya gotta drill 2 more holes at the top, if an Alpha 1,....

 

[thumpar]

If you are planning on using the same motor you will need to ditch the interrupt switch parts. If there is a computer it would be different for a Bravo also.

 

[tank1949]

If you are planning on using the same motor you will need to ditch the interrupt switch parts. If there is a computer it would be different for a Bravo also.

For the Thunderbolt ignition System?????

 

[Bondo]

Ayuh,..... All Mercruisers use T-Bolt ignition,... Bravos are wired differently than Alphas,....

 

[thumpar]

Ayuh,..... All Mercruisers use T-Bolt ignition,... Bravos are wired differently than Alphas,....

If it is EFI it is not just wiring.