[frnkeore]

If it has block off plates, in the front of the block, it would be very late '36, '37 or '38.

If it have LB stamped on the right front of the the intake surface, it will be '36 and have insert bearings but, not all are stamped and some are fraudulently stamped.

Are the heads aluminum and what are the marking on the them?

Where are the water pumps, block or heads?

Earlier that that, others will have to chime in.

If you supply a picture, make sure you get as much of the front of the engine, as possible.