Score of the Day

Just brought home a 4/1/71 cast 360 with standard bore. May be a foundation for a future stroker motor. Got 915 heads (small valve) a new max velocity Crane Cam kit, crank, new timing set, new Edelbrock Performer RPM intake and a 90 deg oil filter adaptor.... $220.
I will have the block cleaned up and sonic checked and magnafluxed. It has Letter markings on the oil pan rail in between the cylinders. Some A. B and C?
Don't ever recall seeing that before. Anyone know what they represent?


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