they are standard oval port 396 heads, certain ones were used on 427's in corvettes on the 390 and 400 HP versions. They would have larger valves than the chevelle heads. The E-14-8 is the casting date of May 14, 1968.
Tom
they are standard oval port 396 heads, certain ones were used on 427's in corvettes on the 390 and 400 HP versions. They would have larger valves than the chevelle heads. The E-14-8 is the casting date of May 14, 1968.
Tom