Kevin...If it's a 292 the simpliest way to check is by looking at the motor mounts.. a 230/250 has the left and right mounts the same distance back from the front of the motor. On 292's the passenger side mount is set further back. The numbers will tell, but the mounts position is a quick way to tell. Can't see them in the pictures you've posted.

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'63 Chev Fleetside Longbox 'Rusto-rod' 'Big Red'
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