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#1
10-20-2005, 05:21 AM
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Broaching
Here is a 63 409 engine...untouched...seems they didn't machine or broach them early on like they did later///anyone know when they changed machining ??...this shows it better
__________________
 <span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience. 
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#2
10-20-2005, 06:20 AM
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Re: Broaching
So now im really mixed up.
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1967 Nova SS L30 1967 Chevelle L79 1969 RS Z/28 Red 1969 RS Z/28 Lemans Blue 1970 Z/28 Blue 1967 RS Convertible 1968 Camaro SS 1992 GMC Yukon 30166 miles
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#4
10-20-2005, 06:37 AM
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Re: Broaching
I know that all Corvette blocks have broach marks even back in the '50's...I'd say that block has been machined at some point.
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Mark
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#5
10-20-2005, 06:50 AM
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Re: Broaching
Yes Sam and it hasn't ever been machined.
__________________
<span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience.
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#6
10-20-2005, 06:55 AM
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Re: Broaching
Looks to me like it has been machined.
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......
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#7
10-20-2005, 07:05 AM
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Re: Broaching
I was the first guy to pull the pan off the thing...standard bore,factory pistons...can't see them machining the deck and missing the numbers...never been re-stamped unless it was done in the 60's
__________________
<span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience.
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#9
10-20-2005, 07:29 AM
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Re: Broaching
Could it have required additional machining at the factory, before the numbers were ever put on it?
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#10
10-20-2005, 07:42 AM
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Re: Broaching
Did anyone give a crap about an original stamping on a 409 in the 70's ? I doubt it...you could still get crate 409's then too...pan has never been off until last night !! Unless someone took a 6 inch sanding pad and gave it a cleaning. The "high" spots in the stampings are a bit shiny...
__________________
<span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience.
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