ZL-1 Block Marking Help

**iluv69s** · #1 05-11-2013, 09:03 AM

I believe that is a later 'Yenko' block. They made big-bore and high deck versions. Ive seen them with a snowflake but I believe typically on a Yenko block, it would not have a 'w' for winters..If I recall it would have had a snowflake with an L... going by memory

Interesting as it has screw-in freeze plugs, typical of production blocks, but I have Yenko blocks had them both ways.

**iluv69s** · #2 05-11-2013, 09:03 AM

Neat oil filter too !!

**Igosplut** · #3 04-04-2025, 09:56 PM

Quote:

Originally Posted by iluv69s

I believe that is a later 'Yenko' block. They made big-bore and high deck versions. Ive seen them with a snowflake but I believe typically on a Yenko block, it would not have a 'w' for winters..If I recall it would have had a snowflake with an L... going by memory

LC for lockport foundry.

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