z28 intake ouestions
 

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/3gears.gif[/img]

Re: z28 intake ouestions
 

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]

Re: z28 intake ouestions
 

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

Re: z28 intake ouestions
 

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]

Re: z28 intake ouestions
 

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