water neck 660
 

I want to put the correct waterneck in my 1969 L78 Camaro (built 2D) , but I have seen different versions of the 660. 1)cast # on flange, 2)cast # in large font on tube 3)cast# in small font on tube , which is correct for my application? Also does '69 have a date code? Thanks for the help.

Re: water neck 660
 

My low-mile 1969 Z has the 660 water neck with the casting number embossed on the flange. Have also had a few original 1969 350 Chevelles with the same neck. I do not believe these are date coded. Hope this helps, Tony

Re: water neck 660
 

Thanks, Wonder if 396's had the same one cast on flange

Re: water neck 660
 

I've seen the necks with the numbers cast on the flange on unmolested smallblocks.
The ones casted on the tube,on Big Blocks.
Can't really say which ones of those had small font to large though.

Re: water neck 660
 

was under the impression that they went from tube to flange sometime in the 69 model year, but I don't know when. I have one of each in case I ever find out for sure.

PS: Remember a time when no one knew what "font" meant? https://www.yenko.net/ubbthreads/imag...lins/smile.gif

Re: water neck 660
 

Early ones are on the flange, while the later versions are on the tube.

Re: water neck 660
 

I have probably pulled 50+ 660 housings from junk yard cars and pick ups. I have one on ebay right now. The number on the base seems to be 1968 and early 69. After those dates they all seem to be numbered on top. Most of the cars were full size from the Janesville plant. Earl

Re: water neck 660
 

OK, but when did the '660 housing with the carb return
spring - tab show up? I see these on restored cars all the
time and I don't think they are correct. Anyone know?

Nuch

Re: water neck 660
 

This makes sense,as the small blocks I referenced earlier were all pre 1970,and the Big blocks post 1969.
I have never noticed the small vs.large font before.
What size font would this be considered?

http://i159.photobucket.com/albums/t...rmohousing.jpg

Re: water neck 660
 

[ QUOTE ]
This makes sense,as the small blocks I referenced earlier were all pre 1970,and the Big blocks post 1969.
I have never noticed the small vs.large font before.
What size font would this be considered?

http://i159.photobucket.com/albums/t...rmohousing.jpg

[/ QUOTE ]

A repro by paragon

Re: water neck 660
 

I have the same question as nuch: would a water neck w/carb spring tab be correct for a 69 COPO camaro??

Re: water neck 660
 

[ QUOTE ]
I have probably pulled 50+ 660 housings from junk yard cars and pick ups. I have one on ebay right now. The number on the base seems to be 1968 and early 69. After those dates they all seem to be numbered on top. Most of the cars were full size from the Janesville plant. Earl

[/ QUOTE ]

That is an interesting observation. I have seen and inspected several early BB 69 camaros that have the 660 on the tube and the provision for the spring. My 9B 69 BB survivor camaro is configured this way as well. My thinking was that it had something to do with different suppliers they used on any given day, week or month. I have not observed the pattern you suggest.

Re: water neck 660
 

I havea late 69z28 11A that had the numbers on the flange. I went through the concourse certifaction,and they said that it was wrong. it should have been on the tube.I still think that the one on the flange was right.

Re: water neck 660
 

Some interesting comments in this e-bay listing. I know this guy knows his GM bolts inside and out from earlier sales I have watched. Not sure on his housing observations.
http://cgi.ebay.com/ebaymotors/69-70-SS-...1QQcmdZViewItem

Re: water neck 660
 

Observation: The 660's with the number on the neck has the triangle cast with the letters ADC inside the triangle and the 660's with the numbers on the base has a diamond cast with the letter P inside located in the recessed area near small hole.

Re: water neck 660
 

Your build date is 9B, what are the numbers under the 660 number?
Anybody has a original BigBlock Camaro with build date 2D?

Re: water neck 660
 

My 68 327 has the 660 on the neck.....0702 assy date.Very late date for an L-30.... I never thought much about it.. https://www.yenko.net/ubbthreads/imag...lins/dunno.gif


Steve

Re: water neck 660
 

Large Font, numbers on neck web page