Lets not over hype a simple smog motor built with some HD parts more for durability vs performance.

Look at your engine stamp, the prefix before the 360HP, it will be 8W, 9W ect. for the year and built at the Windsor plant like so many other mopar engines.

Logic says vs guessing and speculation if one really wanted to sort out the valve cover color deal folks would be posting engine stamp and block casting date pics and things of the likes and really sort out the pattern.

I love the E58s but still an under powered over hyped mid-late 70-s zero performance motor.

They still sledged up inside and ate rod bearings like any 318 of the time period. The best thing about the E58 is the T quad sound and its just a smog version like all else.

I have a couple and although better then a 318-2bbl at WOT, with the E58 at WOT leaves one still waiting for the power to come on to match the noise but it never does and thats what makes them fun.

The real head scratcher is trying to sort out a 40 year old motor by the color of the valve covers.... get on it and take a pick of the block stamping and the block casting date and make this here posting fun.

Also post the PN sticker on the drivers side valve cover. Ever think the black covers were just for simple E58 ID at a glance in some cars?

Dont forget the air pump version also.