XR to SCX, quick question...
 

is there a difference in higth when switching from XR to SCX upper? Keeping the sportmaster lower....

No

SCX uppers are -2" compared to a standard Mercury Bravo1/X/XR upper....FYI

I am pretty sure uppers are the same. The SCX lower is 2" shortie I believe.

You will also have to do bigger reservoirs for drive fluid.

Standard SCX upper is the same height just set back a hair more .

SCX uppers are -2", call IMCO if you don't believe me. I did the conversion this summer.
Yes your propshaft will be 2" higher with a standard lower.

I'm 99.9 percent sure you are incorrect. It may be the scx lowers that are all -2 but a scx upper with standard length sc lower will be the exact t same as an xr or imco sc

you did the conversion and you think you're 2" higher but your not lol

the scx4 upper is 2" shorter the scx is regular. All the scx lowers are -2. that's what's makes the scx4 -4

you think imco is going to make scx -2 then boats with already aggressive x dimensions have no option to run the scx drives? No

Quote below is from IMCO installation manual.

9. SCX Drive is 19 7/8” from crankshaft center line to prop shaft center line (2” shorter than standard Bravo). SCX4 Drive is 17 7/8” from crankshaft center line to propshaft center line (4” shorter than standard Bravo).

I am 100% sure you are WRONG.

SCX upper is 2" shorter.

https://cimg3.ibsrv.net/gimg/www.off...eb305a9c0c.jpg
This is my set up.
IMCO SCX upper standard SC lower with standard vertical shaft. Propshaft is 2" higher than standard Mercury XR.
If you want a real answer to your question and not a bunch of guesses, call Fred at IMCO.

SCX-4 upper is same dimensions as scx except for the cavitation plate that is bent up (lower to upper bolt pattern also different) to allow for the -4 lower prop clearance. The lowers are the difference between them. But yes a scx with a scx lower or a scx with a -2 sportmaster or -2 sc lower make the same x-dimension as a bravo with a -2 lower.

Those are -2 lowers pictured, not standard lowers

correction: Those are standard lowers, angle of cav plate tricked me. So your setup is the same X-dim as a standard bravo setup.

I was just talking to jeff Harris to confirm. He said the scx4 is -2 in the upper -2 in the lower. Regular scx upper and lower is -0 in the upper -2 in the lower.

But in any case silvergts is wrong lol

Don’t want to beat a dead horse here but the scx-4 upper is the same dimensions as the scx (obviously the splash plate is different). Otherwise it would not fit in the gimbal ring. The scx-4 lower is 2” shorter than a scx lower, which is 2” shorter than a standard bravo/sc lower

https://cimg0.ibsrv.net/gimg/www.off...cd67ed7d46.png
https://cimg1.ibsrv.net/gimg/www.off...77597d9a59.png

I did the conversion last year and checked with imco 2 times.
The SCX upper is the same height.

I kept my xr lowers with duel water pick ups!!

Nice setup, ITS with seven inches back makes for clean water. Every one foot back you raise drive up two inches. You guys without ITS have less options before you blow the prop out for miles before your on plane. Phantom new 32' all will have ITS because of the cleaner water. Hence lower X dimensions without raising engine and center of gravity. Sorry for rambling on here. My 2 cents