73 Chevy v8 question

[Stowe, Ted-SEA]

thanks Don

> -----Original Message-----
> From:	Don.F.Broadus at ucm.com [SMTP:Don.F.Broadus at ucm.com]
> Sent:	Monday, April 05, 1999 8:49 AM
> To:	diy_efi at esl.eng.ohio-state.edu
> Subject:	RE: 73 Chevy v8 question
> 
> The Dist is a 1968 built march 19 if it is points
> The carb is a 1973 part   
> The block could be a four bolt the last 3 numbers 010 of the block casting
> number
> usually indicate 4 bolt but not always. Most 4 bolts have the  large solid
> balancer.
> 
> > -----Original Message-----
> > From:	Stowe, Ted-SEA [SMTP:StowT at PerkinsCoie.com]
> > Sent:	Saturday, April 03, 1999 10:48 AM
> > To:	'diy_efi at esl.eng.ohio-state.edu'
> > Subject:	73 Chevy v8 question
> > 
> > 
> > Thanks very much to everyone for helping me id my Chevy 350.
> > 
> > I believe it to be a '73 350 out of a passenger car, which one I can't
> > tell,
> > I am assuming a 2 bolt main. whether it was rebuilt or not I can't tell.
> > 
> > the head casting # is 3973487
> > the carb id, (2bl Rochester ) is 7043114
> > the block id is 3970010
> > the intake is 3997773
> > 
> > the distributor I can't find listed anywhere, it is a 1111440  8c19, the
> > 8c19 would normally tell me that the distributor was built on march 19th
> > 1978, but how that got there I can't tell. It is a single point dist.
> > 
> > I cannot get the waterpump nor the exhaust manifold numbers.
> > 
> > a great numbers book is 'Chevrolet by the numbers' really nice for this
> > sort
> > of thing.
> > 
> > I have a question about the intake manifold, this is not a efi question,
> I
> > wish it was but I am trying to do the right thing here. Putting an efi
> > system on my mgb has taught me to pay lots attention to details and
> think
> > before doing anything.
> > 
> > I took the carb off and sent it out to be rebuilt, as it idled funny +,-
> > 300+ rpm, and I took the intake manifold off and had it tanked because
> it
> > was just too dirty.
> > 
> > I did this also because the egr valve appeared not to work, and after
> > seeing
> > the egr valve passages from the outside all clogged, I just thought that
> > was
> > the problem.
> > 
> > now with a clean manifold I think I see something else. this 'egr'
> > manifold,
> > has two small ports on the passenger side, that would appear to mate
> with
> > 2
> > ports on the head on that side. these ports are right under the egr
> valve
> > on
> > that side.
> > 
> > however there are no ports on either head for such a purpose, and no
> holes
> > in the old intake manifold gaskets either. so even with the intake's egr
> > ports cleaned up, nothing is going to happen. 
> > 
> > so is this a clear case of a different set of heads/manifold ? or is
> this
> > not a problem ?
> > does anyone sell an egr valve block off plate ? I'd hate to kind of
> leave
> > this condition existing as the egr passages are just going to load up
> with
> > carbon again.
> > 
> > also, in looking at the HP ratings for 350's around that time, (73),
> what
> > happened to the HP ratings ? this engine would appear to have a hp
> rating
> > of
> > 145. the 350's prior seemed to have about 25+ more, was this a different
> > method of measuring hp ? or was this the result of the emission
> > requirements
> > at the time ??
> > 
> > I accidentally got a set of felpro intake manifold gaskets that appear
> to
> > be
> > for a intake manifold that blocks off the exhaust crossover. I would
> guess
> > that this was done to help cold running conditions, any advice on
> > retaining
> > this or not ? 
> > 
> > thanks for all you're help. when finances and time permits I would just
> > love
> > to efi this.
> > this is a 350 in a 72 xj6 with a turbo 350, I plan to put a 4 speed auto
> > in
> > it sometime.
> > 
> > Ted Stowe