MerCruiser 77319A1 170hp 470 4cyl 3.7L Heat Exchanger 3" Early Style 1976-1982 Mercruiser Propeller (1970-1981) This is an later

(1970-1981) This is an later model of this distributor because of the mounting for the condenser

hole to hole measured center to center 2-1/8"

 This is From a 1970 Kiekhaefer Mercury 7

Distributor assembly: 332-4797A 3

This was used on 1984

MerCruiser 77319A1 170hp 470 4cyl 3.7L Heat Exchanger 3" Early Style 1976-1982 Mercruiser Propeller (1970-1981) This is an laterItem Details Removed from a 1976 1978 MerCruiser 470 S N 5064860 Overall Good Condition & tested for leaks We have installed new end seal gaskets on this. Parts Included Heat Exchanger 77319A1 77319 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