I am not knowledgeable enough to know the ins and outs here, however, I find it interesting that the BBQ tick is showing up in the Boss engines and GTs, and many components in each are different, ie forged and not forged.
We know the tick is showing up in the GTs, and this includes the older model engines with the oil squirters, as well as the engines where the pistons are now coated with no oil squirters.
So there seems to be a common thread running through here.
Block or bearings makes a lot a sense to me.
But I am not an engineer or a mechanic, just using logic from observing what I read here.
2012 Shelby American Mustang GTS 580rwhp 485 ft/lbs Grabber Blue White Stripes
Ford Whipple, 5.0L, Tremec XL Magnum, MGW, Centerforce DYAD clutch, Boss 302 Torsen w/4:10s, 302R EPAS, Eibach Coil Overs, Fays 2 Watts Link, Dynotech DS, Shelby UCAs/LCAs, Wilwood brakes 6 piston 4 piston, Drake Bump Steer, heavy duty cooling, welded axle tubes, Interior Package, GT4 wheels, Borla Touring axlebacks, GT500 rear valence w/parking sensors, and airbag cover signed by Carroll Shelby.