Looking for 496 HO cam and ecu for 2 motors and engine covers later models. Or aftermarket cam that has gobs of torque down low
As I usually never run the boat above 3800 RPM with a few 4000 RPM peaks. This is a cruiser.

Rebuilding motors probably switching pistons , valve springs , roller rockers. Factory valves intake block etc.
what can be done to move factory HP and Torque curves down. This also a repower that I bought 2 used drop outs. Previously had
Mercruiser 340's

Still looking for 2 Ho ECU's any help

what are your old ecu numbers i may be interested

Just buy it all from Raylar. It is a tiny bit better than stock, its new and his roller rockers have the metric nuts and fit under the valve covers. Then send your ECU's to Whipple for stage 2 or 3 reprogram.

Thanks. I'm calling raylar

i may have an ecu for you 863619t7 any good for you ?

The number on one of the ECU's are 866090-002 with 885557 under the first number these came from an I/O setup. Is a inboard any differant

yes that should work for an inboard use with mechanical throttle and shift

Sweet. Thanks for the help Tazdevil

have one stock Merc 496 Mag HO ECU 2004 # 885557 if interested E-mail Me at [email protected] thanks