300 promax to 300xs question

[spearhunter7]

Is it possible to put a 300xs power head on a 300 pro max mid? I'm sure it wont line up correctly or will it? And if not, can you make an adapter for it?

[Adam McKeon]

Yes, it will work. All you need is an XS powerhead ( i know where a bunch of drop-ons are ) and a 300xs exhaust adapter plate. You already have the potatoes of the project- you just need the meat.

[karman 2]

This caught my eye. So, you can drop a 300xs powerhead onto an existing 300x mid? I just cooked my 300x, and the fuel milage is way better with the XS. Where can I research this further? Interested!

[Capt.Insane-o]

This caught my eye. So, you can drop a 300xs powerhead onto an existing 300x mid? I just cooked my 300x, and the fuel milage is way better with the XS. Where can I research this further? Interested!

Call me and I'll tell you.

[NICE PAIR]

Yes, it will work. All you need is an XS powerhead ( i know where a bunch of drop-ons are ) and a 300xs exhaust adapter plate. You already have the potatoes of the project- you just need the meat.

Hey Adam .... I'm listening. Which cowl do you run? Can you modify a 300xs split lower housing to fit a 300 promax mid?

[gregpro50]

Where can I find a used 300xs powerhead?

[Adam McKeon]

Hey Adam .... I'm listening. Which cowl do you run? Can you modify a 300xs split lower housing to fit a 300 promax mid?

Hey Stephen! Cowl-X. Im not sure what you mean about your second question. Split lower housing? Do you mean the split lower skirt?

[NICE PAIR]

Hey Stephen! Cowl-X. Im not sure what you mean about your second question. Split lower housing? Do you mean the split lower skirt?

I'm guessing a cowl-x is a cutom cowl that fits the promax bowl? Yes could a guy notch or cut the split lower housing to fit a promax leg and use the 300xs cowl? Thanx Steve

[Adam McKeon]

Cowl X meant stock X cowl or promax cowl. you could use the 2 piece skirt from an XS since the X adapter plate has the " ring" to except the skirt gasket however some trimming would be required to the skirt and honestly would look pretty bad since the X exhaust housing is so fat and none of the lines would match up.
I just finished another 15" mid I built it for my 300XS . All new stock Merc parts w/ a Taylor exhaust housing. Nothing is cut or chopped. The 15" swivel bracket is from a 200XS ROS since it uses the same trim sender.

[spearhunter7]

That sounds like a sweet motor. Do you have any pics of it?

[Adam McKeon]

[Adam McKeon]

To anyone doing the conversion from an X to XS powerhead- make sure you pickup either a stock XS tuner or a DBR tuner.
I would not recommend cutting a stock XS tuner if you have a 15" mid... go with the DBR tuner.

[NICE PAIR]

Cowl X meant stock X cowl or promax cowl. you could use the 2 piece skirt from an XS since the X adapter plate has the " ring" to except the skirt gasket however some trimming would be required to the skirt and honestly would look pretty bad since the X exhaust housing is so fat and none of the lines would match up.
I just finished another 15" mid I built it for my 300XS . All new stock Merc parts w/ a Taylor exhaust housing. Nothing is cut or chopped. The 15" swivel bracket is from a 200XS ROS since it uses the same trim sender.

10-4 on the look bad. So, a 300xs will fit under a 300 or 300x cowl?

Let's see some nice closeups of your 15" motors.

[spearhunter7]

There's mine just need an xs powerhead so I can sip fuel while hallin a$$

[NICE PAIR]

There's mine just need an xs powerhead so I can sip fuel while hallin a$$

Those 15" 3 litres are so "cute"