Difference in a 273 2 barrel and a Commando Block?

68GTconvert said

Is there a difference in a 273 2 barrel and a Commando Block? Is there a difference between the block from a solid to a hydraulic lifter motor? I have a block but some guy is saying there is a difference in the block. I thought they were they same...

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they are the same 273 commando motor had 10.75 dome piston and a little bigger solid cam the heads are 1.72 intake exhaust 1.58 i think 2 barrel motor has like 8.5 to 9.1 4 valve relief in piston the blocks are the same all 273 was a solid lift cam motors