Which engine?

Happy Memorial Day and thanks for our freedom. The 4 barrel version of the 273 has higher compression pistons and a slightly bigger cam. Other than the dual point distributor, 4 barrel, air cleaner, and valve covers, everything else is the same. The 4 barrel cars had performance exhaust also. If you want to restore the Commando car you can use the 2 barrel engine and build it to 4 barrel specs. It will still be correct. There are no body serial numbers on the early engines so being "numbers matching" is not a issue.