Correct engine stamping on the flat boss for a 70 426 hemi

[daves70]

Can anyone tell me what the correct stampings were on the flat boss of the engine for a 70 426 hemi? (the flat spot on the block at the top front of the engine) i.e. 426 h.p. 70???

[426 pentastar]

This is from Galens book,413-426-440,left side front of block-rear of water pump.Except 1968-1971 hemi-serial number only.serial number found,left side rear of block near oil pan flange