I have a 64 394 with block #585786-4 1/8. That number tells me it's 64 394 . The stamped # on the left side head above middle exhaust is H610967. I haven't seen that number,please help. I'm also looking for Main bearings 0.010. Thanks for your time.

 

It's the engine ID number.



H indicates a high compression 2-barrel engine in a Dynamic 88 (3400 series). A low compression engine would have a L or E suffix after the engine number. J would be a 4-barrel engine from a Super 88, Ninety Eight, Starfire or Jetstar 1.

Here's the engine ID chart from the 64 shop manual.

 

Thanks for your time!