z28 intake ouestions

[Peter D]

1969 z-28 question #1. waterneck lower driver side corner has a thin triangle cast into it with a 1/16 (approximantly) inch hole. Is this a stock water neck or something oddball? If it is stock, what is the hole for? #2 the intake manifold (same car) has a 1 1/4 freeze plug in the place where earlier (pre-smog)manifolds had a riser to add oil. Is this manifold period correct or a bogie? As always thanks in advance. Dazed and confuesed [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/confused.gif[/img] [img]/ubbthreads/images/graemlins/dunno.gif[/img] [img]/ubbthreads/images/graemlins/[/img]

[68z302]

Not sure about the hole in the waterneck, but it's probably for a return spring? The plug for the oil filler is correct for '69.
If you posted the cast in part number on the intake it would be easier to ID [img]/ubbthreads/images/graemlins/biggthumpup.gif[/img]

[SS427]

The 660 water neck is correct and the little tab is in fact for the carb return spring depending on useage. This neck was used on many different applications.
Rick

[Peter D]

ss427, That was my guess on the waterneck hole thank you for confirming it. 682302 thank you on the freez-plug confirmation and the part # on the manifold is 1843657 and I can't read the last number but it looks like a 2........ [img]/ubbthreads/images/graemlins/dunno.gif[/img]...... [img]/ubbthreads/images/graemlins/tongue.gif[/img] [img]/ubbthreads/images/graemlins/rolleyes.gif[/img]... O.K. Yuck Yuck the cast # is 3932472 the manifold also has a snowflake with a W in the center on the driver side front. lemeknow and thank you in advance. Peter [img]/ubbthreads/images/graemlins/beers.gif[/img] [img]/ubbthreads/images/graemlins/flag.gif[/img]

[68z302]

Yup,
You got a manifold for a '69 z28 [img]/ubbthreads/images/graemlins/biggthumpup.gif[/img]