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In a towing situation which on would pull better up a hill with matching transmitions and rear end gears. The bore and stroke on the motors are almost exact. The 352 has a bore of 4.000 and stroke of 3.500 and the 350 has a bore of 4.000 and stoke of 3.480. I would think the ford because I like it better but that is just me.
Stock, the Chevy wins. The FE has terrible exhaust manifolds. Other than that, they are mostly the same, with the 350 obviously getting modern upgrades towards the end of it's life which would put it ahead of the 352.
If you found the last 352 in '67 and pitted it against the first 350 in '67, it would probably favor the 350. If you pitted the weakest versions ever offered, the 352 probably wins as it did not suffer the 1970s horrors. If you pitted the hottest stockers ever offered, the Chevy wins.
If you reenacated WWII using all available 352s vs. all available 350s, the Chevy wins......
If you go wildest aftermarket build, the 352 probably wins as you can overbore it to 4.050 and stroke it out to a 438, just a little larger than the 427 a 350 will go to.
There are so many possible variables here that this is an impossible question to answer. In general, talking factory stock, Chevy head breathe better. That means more total peak hp. There is no way for a stock 352 to overcome that limitation. However, if your tow rig is handicapped with a numerically low axle ratio, say 3.08, the 352 may have the edge, due to smaller valves leading to higher velocity leading to a lower rpm torque peak. This, of course, also depends on the stock cam grind.
Things like bore/stroke and rod ratio are great talking points, but those theories seldom pan out in the real world were there are so many other factors involved. Both long stroke and big bore engines have been made into torque monsters. Aircraft engines typically produce peak power below 3000 rpm are extremely oversquare, for example.
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