[REAL 1]

I stand corrected. It took me some time going through all my books from many different authors including the Registry and many different magizine articles in a compendium book on Cobras and all to their discredit do not even mention this detail as to center oiler vs. sideoiler with regard to the 427. The only book that discussed the fact that the 427s came in two varieties in the Cobra was Rinsey Mills book on The Essential AC Cobra other then the Colin Comer book.

Very interesting detail.

It is clear that all Comp and SC's had the side oiler. My understanding is that the Comp 427 had high rise aluminum heads and the SC had the medium rise cast iron heads.