I`ve just recently started my 68 FE 390 after sitting 7 yrs. Yep mine has 352 embossed on the front ds. I`ve heard you only truly know the cu.in. is by measuring the bore.
Mine is a 2bbl
You have to also measure the stroke. A 360 and a 390 have the same bore, the 360 is just a shorter stroke. Circle track guys always preferred the 360 because of the shorter stroke...wind up quicker.
