|The MGA With An Attitude
Engine Carrier -- TS-201 - (Pg 5 of 5)
At the left rear corner (top image) is the 1/4" deep cut to clear the drain plug in the oil pan. At the right rear corner (second image) is the 1/8" deep cut used to adjust the final fit on the inside width.
And one last image, just because it was there.