Dick
I believe there are a lot of heads out there today that will out flow the
OLD hemi. And they seem to be able to improve the venerable SB Chevy to
higher and higher numbers every year. Gotta question that hemi 416 cfm
number at .700 lift however, it's way to big a jump from the previous 313cfm
@ .600 lift.
Now if you can buy six hemi's for the price of these Brodix heads I want to
know who your supplier is? Don't forget the cost of rebuilding one of those
old puppies too.
JB
----- Original Message -----
From: "Dick J" <lsr_man@yahoo.com>
To: "landspeedracer" <landspeedracer@msn.com>; <land-speed@autox.team.net>
Sent: Wednesday, December 26, 2001 9:50 PM
Subject: Re: The Real Difference: Hemi vs Ford & Chev
> Thanks, John. Those ARE impressive numbers. But
> ya gotta admit, those hemi numbers look good too,
> especially from a fifty year old motor! And, I
> can buy six hemis for the price of a set of those
> Brodix heads. Hee hee hee But, I gotta admit, I
> didn't think the SBC (Even Brodix) flowed that
> much. Those would be just about the most one
> could expect to get from a SBC, wouldn't they?
>
> Dick J
>
> --- landspeedracer <landspeedracer@msn.com>
> wrote:
> > Dick
> >
> > Here are some intake numbers for a new Brodix
> > chevy ported head @28" H2O.
> >
> > .200" - 156 cfm
> > .300 - 237
> > .400 - 301
> > .500 - 347
> > .600 - 374
> > .700 - 395
> > .800 - 401
> >
> > JB
> > ----- Original Message -----
> > From: "Dick J" <lsr_man@yahoo.com>
> > To: <land-speed@autox.team.net>
> > Sent: Wednesday, December 26, 2001 7:31 PM
> > Subject: The Real Difference: Hemi vs Ford &
> > Chev
> >
> >
> > > Specifically, I was comparing intake flow of
> > a
> > > stock 1955 Chrysler 354 hemi and a ported
> > > Chrysler 354 hemi with some figures I had in
> > a
> > > magazine for common SBC GM and aftermarket
> > heads.
> > > I found that the old hemi outflowed any of
> > the
> > > heads listed in the article I had. I can't
> > find
> > > the magazine with the SBC numbers as I have
> > just
> > > boxed up a bunch of magazines in my annual
> > > cleanup to make room for new Christmas
> > > subscriptions. If anybody has flow numbers
> > for
> > > SBC though, I would like to compare them with
> > the
> > > old hemi. Here's what the 1955 Chrysler hemi
> > > flowed at 28 inches:
> > > .200 lift 121 stock 125 ported
> > > .300 lift 178 stock 200 ported
> > > .400 lift 212 stock 261 ported
> > > .500 lift 225 stock 287 ported
> > > .600 lift 233 stock 313 ported
> > > .700 lift 416 ported (modified
> > for
> > > racing)
> > >
> > > Personally, I think those numbers look pretty
> > > good, even today. Does anybody have any
> > numbers
> > > on any SBC that flows more than that? Most
> > > old-time hemi guys felt that the smaller
> > Desoto
> > > flowed even better than the Chrysler, because
> > the
> > > ports were straighter. I dunno, my motors
> > are
> > > all nearly stock, but I still love every
> > rusted
> > > bolt in them!
> > >
> > > Dick J
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