mid to late 1972 intake maniold, exhaust maniolds thermoquad,and valve covers

putting my 1973 Dart Sport back to stock looking for 5/72 to 11/72 casting dates.
I believe intake casting# 3671918
LH manifold # 3614368
RH manifold # 3418623
Thermoquad # 6319S
I have several intake and exhaust maniolds but dates are too early, really would like to do it right.

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