It was not uncommon during late Sixties/early Seventies wrecking yard forays to come across two barrel Y’s that had the dual quad recessed valley pans on them. At the time, the significance of those valley pans wasn’t recognized as now it’s apparent that these were likely dual quad engines where the 2X4 setups were removed and simply replaced with intake and carb setups that were easier to maintain.
Here’s the updated list for the 30 ECG-D 2X4 intake manifolds that have dates. No November intakes posted yet.
10-15-56 (JH)
12-5 (JH), 12-6 (Marc), 12-13 (JH), 12-14 (Ted), 12-14 (EP), 12-17 (TD), 12-28 (JH)
1-9 (DK), 1-9 (NoShortcuts), 1-18 (JH), 1-22 (Ted), 1-22 (Genuinerod)
2-4 (JH), 2-28 (JH), 2-28 (EP)
3-6 (JH), 3-7 (JH), 3-8 (JH), 3-13 (JH), 3-13 (EP), 3-29 (Ted), 3-29 (EP)
5-28-57 (fakirone)
4-3 (JH)
6-3 (JH), 6-5-57 (Ted), 6-6-57 (JH), 6-6-57 (Flatrod), 6-10 (JH)
No date (CL),
Lorena, Texas (South of Waco)