Mexican
Member
Went through this process a few years ago and eventually decided to go for it. Things to consider:
1. Alpha drive not suitable due to increased torque - info from Mercury marine in UK and US.
2. Be careful where you source your GM engine - have heard of problems relating to claimed hp and actual - get tested.
3.Go for Bravo 3 if you can.
Eventually went for Yanmar/Mercruiser package - good deals around and got part ex for my 5.7litre V8, in Bayliner 2655 (wide body). Yanmar 240hp 4cylinder now gets 31/32 knots WOT and cruising at 2800/2900 21/22knots @ around 6-8gph on 24inch pitch B3 set.
If there is space in your compartment, the Lancing marine deal sounds good - plenty of places in US to get cheap parts. If memory serves me right Peninsular Marine use GM blocks and Star Power same as Mercruiser (7.3l).
1. Alpha drive not suitable due to increased torque - info from Mercury marine in UK and US.
2. Be careful where you source your GM engine - have heard of problems relating to claimed hp and actual - get tested.
3.Go for Bravo 3 if you can.
Eventually went for Yanmar/Mercruiser package - good deals around and got part ex for my 5.7litre V8, in Bayliner 2655 (wide body). Yanmar 240hp 4cylinder now gets 31/32 knots WOT and cruising at 2800/2900 21/22knots @ around 6-8gph on 24inch pitch B3 set.
If there is space in your compartment, the Lancing marine deal sounds good - plenty of places in US to get cheap parts. If memory serves me right Peninsular Marine use GM blocks and Star Power same as Mercruiser (7.3l).