As someone who currently has an ‘83 280ZX undergoing reconstruction and a repowered ‘66 Mustang in my garage (original 6-cyl auto car I swapped to a 331-stroker with 5-speed), I feel somewhat qualified and uniquely compelled to speak on the audacity of this delightful abomination.

Considering that in the Great Britain all driving licenses are issued in the name of the Queen, shouldn’t “surrendering his license” technically only involve him simply handing it back to his wife?

Solution: Release as-is; rebrand it as the new Pontiac Fiero.

Hello.

That differential looks a lot more like a Ford 8.8 out of an explorer than the stock Chevy to me. It’s a common swap and adds a lot of strength (31-spline axles plus larger ring/pinion). Should be fine for this power level.