Like I said, do a 351 stroker, or leave the V6 in it. I think this swap is a waste of time unless you go BIG.....No wow factor in having a 302/5.0 in a Mustang, some people still think the 99-04 cars came with 5.0's.
But I do have to stick up for the 302, its a damn good little motor. Some decent heads and a cam are all thats needed to make 300+ HP in a pretty small V8 with lots of torque and for cheap. As far as the blocks, yeah 5.0 blocks are thin, but running an early 302 block is stronger, as well as running a mexican block 302.
As far as the Roush 327 is concerned, its 302 based.
Oh and making a 600+ HP V6 is not just bolt-ons and turbo..... lots of tuning, bottom end, cam and cylinder head work went into that.
90 LX, Previous 4 cyl.
408W In the Works
TW FAC's, Jay Allen cam, Super Victor
2001 V6 5 Speed Daily Driver
Windstar Intake, Dual Exhuast, CAI, Headers
Best ET: 15.44@91 mph (on 18's)