I don't have the head numbers handy but here is the other information you wanted.
1972 SBC 350 truck engine,
Displacement 350 cubic inches
Bore and stroke 4.000 x 3.48
Compresion ratio 8.5 to 1
Horse power 175 @ 4000 rpm, (SAE net)
Torque 290 @ 2400 rpm, (SAE net)
Jim
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