Re: Broaching
 

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

Re: Broaching
 

Couple more originals....no doubt...top one I had to shrink and you can't really make the circular pattern out

http://img.photobucket.com/albums/v1...gine409-QB.jpg
http://img.photobucket.com/albums/v1...irpadstamp.jpg

Re: Broaching
 

I enhanced them for you..

Re: Broaching
 

here is another
https://www.yenko.net/attachments/166...adstamp2aa.jpg

Re: Broaching
 

close up, looks good
https://www.yenko.net/attachments/166...lairclosup.jpg

Re: Broaching
 

Any word from those experts yet Zedder ???

Re: Broaching
 

Art didn't respond yet, but John did. He had no direct knowledge of the 409 build but mentioned that perhaps they did something different given the different angle. As I think it was Phil that commented the best way to "prove" the block hasn't been messed with is to compare it to other known originals. The pics you posted look pretty good (although the stampings on one are pretty crooked for a factory stamp), so I'd feel better about your block now. I tried to find some other pics on-line for you but they are nowhere to be found.

I'll see if I can get Art to comment.

Re: Broaching
 

I was not at all worried about my block...I know it's untouched..I was pointing out the different style of machining for the 409....another interesting item is last letter of the sufix-- A,B,C are stamped after the Tonawanda number was stamped....they were all "Q" blocks...the A ,B ,C, was stamped after the HP rating was determined by order. Pretty different animal. https://www.yenko.net/ubbthreads/imag...lins/smile.gif

Re: Broaching
 

What does the other side look like?
Is the swirl pattern also on that side?

Since the head is off, what about farther down towards the back of the block, is it there too.

I am curious.

Re: Broaching
 

Its the same Jeff...all the 409 pics are the same that I've seen too...different for sure...still no answer as to why ...the second set of pics are from Verne Frantz who has been working with these since him and Moses graduated high school.... https://www.yenko.net/ubbthreads/imag...mlins/haha.gif