Replies to this message are sent to The Chevelle Mailing List
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If you read any of the publications on the history of
the Chevelle, the 396/402 had nothing to do with a
strike, or rusting blocks, or slightly being
overbored, it came about when GM was trying to limit A
body cars to a 400ci,This was something that went back
to 1965. The 402 was offered from 69-72, this would
account for a hell of a lot of rusted blocks!!!
Rocky Hill
My66SS http://www.geocities.com/rocks66ss
--- "Walchuck, Rich" <[EMAIL PROTECTED]>
wrote:
>
> Replies to this message are sent to The Chevelle
> Mailing List
>
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>
> I thought that these blocks were from before the GM
> strike, and after the
> strike had to be bored from sitting, and rusting. I
> may be wrong, but that
> is what I had heard in the past.
>
> Rich
> '69 elky ss396
>
> -----Original Message-----
> From: Bill Vander Werf
> [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, July 31, 2001 9:27 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [Chevelle-List] 396/400/402/406/408???
>
>
>
> Replies to this message are sent to The Chevelle
> Mailing List
>
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>
> I remember hearing way back in 71 that the 402 came
> about because GM had
> accumulated a number of 396 blocks that were bored a
> little too big to meet
> specs. Instead of trashing the blocks they bored
> them to .030 over and
> continued to call them 396s in 71 and in 72 they
> called them 400s.
>
> Although I never verified the story, it does sound
> like a good way to
> salvage
> some of their investment rather than turning the
> blocks into scrap.
>
> Bill Vander Werf
>
>
> 396guy wrote:
>
> > Replies to this message are sent to The Chevelle
> Mailing List
> >
>
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> >
> > > If memory serves, the 400 Turbo-Jet was actually
> a 402 BBC. BTW, a
> .060"
> > > over 396 is a 408 (I think), not a 406.
> Somebody want to verify the
> > > math?
> >
> > I think you're correct on both counts. A 396
> (4.094) bore that's bored
> > +.060 to 4.154 is 407.663 (give or take a few
> thousandths) and rounds to
> > 408. All big block engines were referred to as
> "Turbo-Jet" and all small
> > blocks were "Turbo-Fire" designate. The "396"
> moniker was so popular that
> > when they introduced the 402 big block, they still
> called it a 396 and
> > retained the 396 badging.
> >
> > Dale McIntosh
> > ACES #1709/TC #92 Gold
> > GR8PMKN - 67 SS
>
>
>
>
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