MerCruiser 77226 470 170hp 3.7L 4cyl 3" Heat Exchanger Bracket Mount 1976-1982 Exhaust Tubes Johnson / Evinrude / OMC

Johnson / Evinrude / OMC Stringer & Cobra - 1980 & Up

One way to tell if you have this style of head or the older style of head is when the valve covers are attached by screws around the perimeters (old style) or bolted directly through the middle (newer style like this one)

but not 100% accurate

12 3/4" Diameter

150hp 1500 115hp 1150

MerCruiser 77226 470 170hp 3.7L 4cyl 3" Heat Exchanger Bracket Mount 1976-1982 Exhaust Tubes Johnson / Evinrude / OMCItem Details Removed from a 1976 1979 MerCruiser 470 S N 5064860 Overall Good Condition Parts Included Heat Exchanger Mounting Bracket 77226 Compatibility For the most part it seems these parts were used from 1976 1982 on 470 models that used a 3" Heat exchanger ****(not the larger 4" model)**** 1976 1977 1978 1979 1980 1981 1982 Alpha One 470 4 cyl 165hp 170hp 180hp 190hp 3. 7L 3. 7LX 224CID 488 485 Sterndrive