04-11-2023, 04:41 PM
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Yenko Contributing Member
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Join Date: Jul 2003
Location: new york
Posts: 8,351
Thanks: 1
Thanked 2,133 Times in 581 Posts
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409...
Quote:
Originally Posted by tom406
With thanks to the late Verne Frantz, who educated me when I was authenticating 348 and 409 cars years back, I am confident that is a decked and restamped block. Linear broach marks that replicate small block pad surfacing, is the tell. The ‘62 409 Bel Air I was inspecting also had linear broach marks, and Verne set it straight, saying that the 74 degree deck of the W motors made them not work on the 90 degree broaching machine, so the low production W motors were decked with a rotary tool that left circular marks on the pad. I’m attaching some (I believe) untouched W motor pads for reference.
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Classic example of the knowledge this site brings to the hobby...Verne was a great contributor to all of us. 
-wilma
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