David Vizard, Uncle Tony's garage, Unity motorsport. Mission impossible Dodge 302 Head porting
I would use the most common 318 casting on a 318 build in this particular situation.. Mainly because that's what it had when it rolled off the production line.
I've seen more #163 casting heads on 318s than any other. Don't look like very good ones either.
I ain't the expert but if you restrict the parameters of the build to "heads that came stock at some point on a 318 LA during the years it was produced" /
Meaning NO 340 heads, NO 360 heads, NO aftermarket heads allowed/ I like the looks of the 302s better than the 163s ... I have heard the praises of (I think they are 920s(?) From the late 60s/, though I haven't seen a set of them in like, forever.... and can't remember what it's chambers looked like. And as low buck as can be....
meaning basic home porting allowed, and standard "down the street" "around the corner" small town America type, machine shop-grade work, would be allowed to finish them up ... No shady dell, no Dick Landy or Herb McCandless or Petty hi tech, high dollar stuff allowed... Though, a before (stone stock) and after flow bench comparison would be welcome.... Measuring head flow, doesn't change parameters in and of itself.
But, it would be nice to know if that small town, typical gearhead/car enthusiast grade of porting and machine work, actually helps or hurts performance. The original parameters were to get the power from STOCK parts, right?
So, let's see a fresh, genuinely stock engine, thoroughly blueprinted, tuned as best as can be tuned (hey, things like stock advance curves were all over the map over the years and several versions of the BBD etc) and let her rip.
Cop motor heads, cam, etc THAT WERE USED IN A 318 from the factory during it's run, are fair game.
