Re: Broaching
 

[ QUOTE ]
but they never left circular marks like on Bob's block

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I have pictures of great planing marks from Tonawanda too...but I will post more pics of other '09's from Verne later..Take the blinders off fellas..maybe that 74 degree deck was cause for a different method.

Re: Broaching
 

Bob, like I said, I don't know anything about pre '66 cars, so I'm just saying that it "appears" to have been machined and that I have never heard of any factory decking process other than broaching. I've posted the question on a private site that I am a member of for John H. or Art A. to respond to and will post their replies. Maybe we'll learn something new https://www.yenko.net/ubbthreads/imag...lins/beers.gif

Re: Broaching
 

That would be interesting...the pics I have of mine and a couple from Verne show the same method https://www.yenko.net/ubbthreads/imag...lins/dunno.gif Plus I would never let a Corvette judge look at it...

Re: Broaching
 

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I would just sell it now & cut your loses while you can.

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https://www.yenko.net/ubbthreads/imag...mlins/haha.gif https://www.yenko.net/ubbthreads/imag...mlins/haha.gif https://www.yenko.net/ubbthreads/imag...mlins/haha.gif https://www.yenko.net/ubbthreads/imag...mlins/haha.gif https://www.yenko.net/ubbthreads/imag...mlins/haha.gif

Ken https://www.yenko.net/ubbthreads/imag...mlins/flag.gif

Re: Broaching
 

[ QUOTE ]
John H. or Art A. to respond to and will post their replies

[/ QUOTE ] Who are these folks ? Do they know 409 stuff ?

Re: Broaching
 

Ill bet it was just sanded and cleaned up a little to change the gasket..to light for machining..looks like the guy was right handed.. https://www.yenko.net/ubbthreads/imag...ns/scholar.gif

Re: Broaching
 

Check out this post from JohnZ over at Camaros.net It shows a pic of the broach machine at Tonawanda.
http://www.camaros.net/forums/showth...ghlight=broach

Re: Broaching
 

[ QUOTE ]
[ QUOTE ]
John H. or Art A. to respond to and will post their replies

[/ QUOTE ] Who are these folks ?

[/ QUOTE ]

Just some GM engineers from the '60's...no one special https://www.yenko.net/ubbthreads/imag...ins/tongue.gif

No worries about Corvette judges wanting to look at your car... https://www.yenko.net/ubbthreads/imag...lins/smirk.gif

Re: Broaching
 

Cool...pick their brain on 409's...see if there was a different method ...all the examples I've seen are like the above...keep the Vette guys by your place and entertain them. https://www.yenko.net/ubbthreads/imag...iggthumpup.gif....BTW very cool pic of the broaching machine on that link...thats a 90 degree deck angle so I am really curious about the 74 degree now unlees that thing was adjustable which I doubt.

Re: Broaching
 

Hey Bob!--I found one the guys working on the assembly line that day-------------- https://www.yenko.net/attachments/166106-cavean.jpg