More About IMCO Stern Drives:
The Billet Aluminum top cap is supported by eight bolts with a controlled water-circulation system and built in spray nozzles to provide maximum cooling to the external upper gear case.
The steel tower in the floor is stabilized through internal lateral support beams to eliminate tower flex and gear deflection.
IMCO has developed a rigid pinion and bearing pack assembly with non-elastic shims to provide the correct rolling torque while stabilizing both input yoke and pinion. Tightened to 75 lb/ft, the pinion assembly is held in place by our plated steel ujoint retainer nut through a direct load-bearing path.
IMCO is the only manufacturer at this time that can offer four vertical lengths and three exterior finishes. See our lower section for more information.
Our Xtreme Advantage SC drives are also available as upper units only, for those who may already own a IMCO, or a stock Bravo lower. Servicing can be performed by any qualified Mercruiser repair shop, no need to send back to the manufacturer. This means more time on the water.
(Also Available as SCX4 - 4" Shorter than standard SC Drive, 2" shorter that SCX drive)
Engineered from scratch for high horsepower/high torque engines, IMCO's SCX.
No transmission needed. Cone clutch shifts internally.
Fits Bravo HD gimbal with helmet change.
Larger net-forged, 1 piece gears and oversized bearings.
Larger clutch.
Internal water cooling with built-in drive shower.
Giant 5 quart oil capacity.
3 gear ratios available 1:25, 1:34, 1:50.
3 prop shafts available 1 1/4", 1 7/16" or Mercury Racing #6
Can be ordered with SC Lower
(Also available as a SCX4T 4" Shorter)
IMCO Xtreme Advantage SCXT Available as a Complete Propulsion Package!
Rear motor mount/bellhousing, high performance BAM transmission, IMCO extension box, IMCO heavy-duty gimbal assembly, all new Xtreme Advantage SCT drive with IMCO Nevada hydraulic steering system and tilt helm.
Designed for high performance applications using a separate transmission. No cone clutch. Fits standard IMCO gimbal with a helmet change. Completely assembled with oversized tapered bearings.
100% engineered and manufactured by IMCO
All new, oversized heavy-duty components (bearings, gears, shafts, and case).
3 gear ratios available 1:25, 1:34, 1:50.
Accept standard Bravo style or optional Mercury racing # 6 propellers.
3 prop shafts available 1 1/4" 1 7/16" or Mercury #6