Boat 170 merc 470 mercruiser motor cyl problems Mercruiser 470 engine 7l marine perfprotech options direction engines replacing question go when old Parts mercruiser 470 heat exchanger coolant mercury 1979 engine recovery assembly l4 barrel 1976 list equivalent listed oem aftermarket example
Mercruiser 470 (3.7L) Marine Engine Options | PerfProTech.com
Mercruiser 470 (2 barrel.) mercury 224 i / l4 1976-1979 heat exchanger