Re: Identifying a Johnson 5.5(?) powerhead

[Anonymous]

It looks like there are two threaded bosses on top of the block, and the intake manifold has two arms, one on each side.
The block seems creamy white, as opposed to greyish.
The ID core has a hole at the edge, as if it had been pried out with a flat blade screwdriver.
The whole engine has been (badly) sprayed with metalic blue paint a good deal lighter than typical evinrude blue.
The spark plug hold go straight back.

It seems pretty clear to me that it’s a Johnson 5.5 head.

I was just wondering what (if any changes) there were between 1960 (has fuel pump mount) and 1964 (end of the 5.5).