D4B and LD4B side by side pics

Cudabnu said
Since I am cleaning and painting 1 of each I thought I'd get a few pics. The main thing I noticed is the angled boss of the bolt holes of the d4b for the 64 65 only heads, everything else appears the same, couldn't really compare the ports as the ld4b is ported.
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Great idea. The intakes should be the same except for the hole size and angle. The D4B is closer to vertical where as the LD4B the bolt holes are close to 90° to the intake surface. I will make this thread a sticky so the information is easy to find.