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Imco sc -3

Old 01-14-2017, 10:15 AM
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Default Imco sc -3

Is anyone running the IMCO SC -3 upper on their boat? I've got a pair of standard IMCO SC uppers and I want to modify them to run -3 lowers, but I want to get some pictures of how IMCO machined the bottom part of the upper to clear the prop and how far forward they machined it. The IMCO is different than a Bravo in that the capitation runs full length, so this is a little more complex than converting a Bravo upper.
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Old 01-14-2017, 01:48 PM
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They just modify the mid section to raise the cavitation plate to give enough prop clearance
http://www.imcomarine.com/cal_store/...on-silver.html

B Max does a similar mod on their -2 lowers.
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Old 01-14-2017, 08:05 PM
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That is pretty much what I was planning on. It seems to be a simple enough mod. I think what I need to do is buy a -3 so I can see how far to mill the rear of the case. I don't want to use my sportmasters as a template because I'm not sure if both cases terminate at the same spot. It probably doesn't really matter, but if I'm going to do it, it might as well be 100% right.
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Old 01-15-2017, 09:06 AM
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Here is a pic of a upper case cut for a -3 lower
https://www.facebook.com/NortheastOutdrives/
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