Inliners International Forums General Discussion Engines 235 or a 261 casting numbers ????

THERE IS NO CASTING NUMBER IN THE BLOCK I LOOKED IT OVER GOOD ! ALL I CAN FIND ARE THE NUMBERS I ALL READY POSTED. THIS IS A STRANGE BEAST THAT I CANT TRACE DOWN.

SO IF THE CON 3F100 IS A DATE CODE HOW CAN A GUY READ IT ??

IS THERE ANY WAY FROM THE SERAIL NUMBER STAMPED ON THE DIST. PAD OF 506T46 TO FIND OUT WHAT IT IS ??
THANKS TERRY