Block crayon marks

[ZLP955]

Great, thanks again as always John! Now I'll have to try and decipher the crayon markings.

[Stingr69]

Havent seen a lot of these but the ones I did see were horizontal - if that is "OK" written there then it looks like it is on the vertical plane.  (If that maked sense).  It does not look like a typical engine suffix location/orientation is what I would say. 

-Mark.

[BillOhio]

It is vertical. O is by the pan. Or what ever it is

[dnroe]

New member and first post for me.   I was cleaning up the engine I am going to use in my Camaro yesterday and noticed the same yellow colored markings.   The engine is not original to the car and is a 69 HK code motor 300 horse L48 from an impala.   Has HK very clearly on the passenger side head and upside down on the side of the side of the block.   Also appears to have PS on the other side of block.   Anyone have any idea if that could denote power steering?   Engine has more crayon behind the motor mounts I will try to get uncovered and try to decipher as well.   I can try to get any pics if anyone is interested.

[rszmjt]

1970 6,000 mile LT1

[ZLP955]

Great photo Mike, and nicely preserved. Must be a nice car, reminds me of the very low mileage one that Charley found a while back.

[rszmjt]

No car, it was out of a rolled 6,000 mile 70 Z28 that was wrecked around 70-71.

[ZLP955]

Ah, pity the car was lost, but explains such a low-mileage engine!

[BillOhio]

Seen this in how to hotrod your small block chevy