Adding Imco Boxes
 

Im looking at buying a new set of 3" boxes to free the boat up. When you buy the kit, does it come with everything you need to do the conversion, what all is involved in the labor?

Do you have to raise the motors 3"?
Is there any cutting involved on the transom itself?
Overall is it a painless process?
if anyone has a step by step to post, that would be great.
I'm pulling my motors this year for new carbs/Dyno and thought this might be the best time to get this done.

The engines have to come up also, ( and possibly back somewhat,
due to the transom angl, unless their inner plate addresses that ?), then there's the issue with exhaust outlets, either custom tail pipes, or fill and redrill.

I didnt think about the Tail pipes!

Longer trim lines
longer water lines if you use drive pick up
steering? I bought the imco transom assembly at the same time of the boxes, it has the steering built in.
exhaust
longer shafts for the drives

Its a pretty big project.

IMO if you just want to raise your prop depth buy a set of shorty lowers and see if you get the results your looking for. If not their an easy sell and your back to square one. If you need the boxes to get the props back into cleaner water and your buying new, go with the Stellings boxes. Their adjustable from neutral(actually 7/8" up) to 3" up and use a drive shaft setup instead of the straight shaft so no need to raise the engines.

One other thing involved with engine raising, plumbing, exhaust, mounts, transom cutouts, lets not forget hatch clearance!

do the stellings bolt directly to the flywheel? I see a lot of post about the stellings tearing drives up, and it makes since , becouse the coupler is gone in that set up to absorb the shock! thats the only reason why I was looking into the Imco!

Now whom would you be referrin to willis

Yes they bolt directly to the flywheel, but XR's break,
even in stock form ( with couplers)

DO NOT BUY STELLINGS. They remove the drive coupler and will aid in the destruction of your drive ! Also they come with NO WARRENTY whatsoever. Mine blistered after 4 months and they said there was no warrenty because they were "in the water" Hmmmm let see.......ITS A BOAT.

As stated they do bolt directly to the flywheel via an adapter. Since I moved my engines forward about 2 feet when we added the boxes I used some drive line bellhousings and drive shaft converters(in place of transmissions) then had shafts made thus retaining the rubber couplers. Yes, still trashed one of my Imco SC uppers being to hard on the hammer but since I do alot of docking/shifting I thought it best to keep the couplers. I powder coated my boxes to match my paint so I do not know about any blistering problems. I have the shafts that came with the boxes if anyone needs them.