The 427's were even Identified with color coding.

Blue an green, side oil supply, standard bores,graded 1-6-a-b-c,
used for racing, type SOHC.


Blue an white, top oil supply, standard bores graded1-2-3,
used for street, type wedge.


Blue an red, top oil supply, standard bore, graded 1-2-3,
used for Industrial, type wedge.


Blue an yellow, top oil supply, standard bore, graded 1-2-3,
used for Marine*, type wedge.


Blue, Top oil supply, standard bores, graded 1-2-3,
used for street, type wedge.


Blue, side oil supply, Scalloped bores, graded 1-6-a-b-c,
used for racing, type wedge.


Blue an white, top oil supply, scalloped bores, graded 1-b,
used for service** type wedge.

~ Vegas ~