...most heads were open chamber heads.
Of all the factory 429/460 heads that were manufactured, such as C8VE-A, C8VE-E, C9VE-A, D0VE-A, D0VE-C, D0OE-R, D1VE-A, D2VE-AA, D20E-AB, D3VE-A2A, E6TE-AB, E7TE, E8TE, F3TE, etc.....only
one casting number was produced as an open chamber cylinder head and that's the D2VE-AA. And it was manufactured for a single model year only (1972). All the rest of the heads are closed chamber heads (except for the hemi).
LO