I searched TC site here, but never found a thread actually talking about the snowflake itself.
Topic: Snowflake design, placement, and impression depth::
I am seeing differences in the actual snowflake marking, and hoping you guys can shed some light. Maybe the foundry changed their die throughout the years?
I have two intakes to compare. One is mine, sitting on my floor here with me (unused, i know!). It is a part # GM 3933163, BBC aluminum. It has a date code underneath showing 3.3.69, and the number 5183 directly below that datecode. The snowflake is down on the #1 cylinder port. Here is a pic of the snowflake on this manifold:
Now I'm also looking at a intake this guy has on his motor (for sale), which shows a more prominent perimeter to the snowflake. With this one, the snowflake is up high on #2 cylinder port (just in front of the carb):
Can you guys comment on the design, the depth of the snowflake impression, and the placement?
I also see that Classic Industries sells a 68-69 396/375 repro "snowflake" intake manifold for $330, part # 14964, on page 700 of our most recent catalog. The snowflake they have is down on cyl #1 port,... like mine.