I was looking at the specs on MSN.com of these LS1's and it says Track FR(in) 60.7
Track RR(in) 60.6

Then weight, length...blah blah blah. What is that? THanks!

SKeTchy

 

Only thing I can guess is. It must be the "track" or "footprint" it puts on the road. Like if you drove in dirt or snow you'd have a roughly 60in wide "track". Just a guess though, I dunno for sure.

 

Yeah, my guess is that's a width measurement, most likely the distance between the center of the left tire's contact patch and the center of the right tire's contact patch.

 

Close it's measured from the outside edge of one tire to the outside edge of the other.

 

Correct. To get picky, it would be the centerline of the wheel rim (not the mounting surface) at the axle centerline, but effectively that's the center of the contact patch when camber is zero.

Changing wheel width without changing wheel offset (by 50% of width change) changes track.