1973 360

junkyardhero said

having driven and ridden in both an early 340/727 dart and a later 360/727 dart sport, the earlier car was noticeably faster. not run away and hide levels or anything, but the difference was there. and both cars were fairly similar in build, so neither had an up on the other.

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Rear axle ratios the same?

3.91 was available in 1970 while 3.55 was the highest available ratio in 1974. And it looks like the standard ratio for 1970 was 3.23 while in 1974 it was 2.94.

I think the 240# weight difference is enough for what you describe to make sense, just curious if there were other differences as well.

And the Dart Sport didn't have AC, right? That added over 100#!