C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Are there any low profile Dist. for EFI small blocks?

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Old 02-26-2011, 02:32 PM
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Kubs
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Default Are there any low profile Dist. for EFI small blocks?

I started some mock up of the new intake on my old engine before I pull it out. Its kind of a snug fit. Everything clears but the air filter barley touches the top of the hood.



Also, the air cleaner clears the distributor, but i done know if Il be able to get the wires on with the filter there. I am looking for a low profile, or even a small cap as a second choice, distributor that is also EFI compatible with the L98 computer.
Old 02-26-2011, 03:13 PM
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Crepitus
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http://www.msdignition.com/Products/...stributor.aspx

http://www.msdignition.com/Products/...stributor.aspx

any help?
Old 02-26-2011, 03:20 PM
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Kubs
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The first one is a mechanical advance distributor, I need a computer controlled advance type, and I have never seen anything like the second one. I dont even know if that will work with a C4.
Old 02-26-2011, 04:29 PM
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The front mount is stupid expensive. Forgot about the L98 ESC. MSD might work if you ditch the vac and mechanical advance. Maby shoot them a email.


one of these help out?
http://store.knfilters.com/search/UnivOvalTap.aspx

Last edited by Crepitus; 02-26-2011 at 04:35 PM.
Old 02-26-2011, 04:41 PM
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Kubs
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Originally Posted by Crepitus
The front mount is stupid expensive. Forgot about the L98 ESC. MSD might work if you ditch the vac and mechanical advance. Maby shoot them a email.


one of these help out?
http://store.knfilters.com/search/UnivOvalTap.aspx
Yeah I will try an email. I dont mean to keep putting down your links, I appreciate the help.

I looked at so many filters. For the oval cone type filters, the smallest one with the proper size inlet for the LS throttle body is bigger than the round one I purchased. Its not as long, but the bottom flange is bigger so I would be pretty much in the same situation.

Im thinking maybe a small cap dist might provide enough clearance, but I dont know. Thoughts anyone?
Old 02-26-2011, 05:17 PM
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bwiencek
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I dunno if it'll work - but have you looked at the distributors that came stock on the 96-99 350 vortec (truck) engines? They are computer controlled, the cap is a 'flat' design that routes the plug wires nicely out each bank...

It's a thought at least - the clearance will be there - just have to check and see if you can adapt the wiring to the L98...

I did a quick search - here's a pic:


Last edited by bwiencek; 02-26-2011 at 05:18 PM. Reason: add pic
Old 02-26-2011, 05:38 PM
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Kubs
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Originally Posted by bwiencek
I dunno if it'll work - but have you looked at the distributors that came stock on the 96-99 350 vortec (truck) engines? They are computer controlled, the cap is a 'flat' design that routes the plug wires nicely out each bank...

It's a thought at least - the clearance will be there - just have to check and see if you can adapt the wiring to the L98...

I did a quick search - here's a pic:

Yeah I saw one of those too. I dismissed it because it is made for the trucks, but does anyone know if it will work with the L98? Im thinking since it only has one plug on it (instead of two) that it wont work.
Old 02-26-2011, 06:45 PM
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rodj
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Originally Posted by Kubs
does anyone know if it will work with the L98? Im thinking since it only has one plug on it (instead of two) that it wont work.
IIRC
not without work
The Vortec TBI setup uses a crank angle sensor on the timing cover ( like '96 LT1 )
Old 02-26-2011, 06:48 PM
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OH - the vortec uses an external ignition module and external coil - so you would need those two - I'd start by grabbing a wiring diagram for both and seeing if you can make heads or tails out of it... It'll be a custom wiring job for sure....

Also - I think a LONG time ago I saw a cap that was like that for the regular old HEI - you had to run an external coil for it - but that was probably 15+ years ago and can't recall seeing one recently...
Old 02-26-2011, 08:53 PM
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Have you looked at this one? MSD 2340
You would have to run an external ignition box, but it looks low profile and has the "cam sync" output for EFI applications.

http://www.msdignition.com/Products/...stributor.aspx
Old 02-26-2011, 08:57 PM
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Originally Posted by Kubs
Yeah I will try an email. I dont mean to keep putting down your links, I appreciate the help.
No worries sorry bout the wild goose chase. I cant cough up a quick simple answer because your on top your game.
Old 02-26-2011, 09:21 PM
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Originally Posted by bwiencek
Have you looked at this one? MSD 2340
You would have to run an external ignition box, but it looks low profile and has the "cam sync" output for EFI applications.

http://www.msdignition.com/Products/...stributor.aspx
I see there is only one connector on that one as well, and it has a fixed spark advance on it. All the other EFI dist. have two connectors. Would the ignition box have the other connector on it?

WOW! I also just noticed the price on that one. I wont be able to afford that, not to mention all the other things I need to buy to make it work.

Last edited by Kubs; 02-26-2011 at 09:24 PM.
Old 02-26-2011, 10:16 PM
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88BlackZ-51
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http://forums.corvetteforum.com/c4-p...t-77100-a.html
Old 02-27-2011, 01:26 AM
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that pos distributor works with the accel dfi vii for sequential , rather than batch fire efi. I don't think it is short enough to solve the problem illustrated By the op.

Race on!!!
Jim
Old 02-27-2011, 02:15 PM
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Ive got another question. How much smaller is a small cap dizzy than the HEI one? Is it by any chance slightly shorter as well? Im only looking for like 1/4".
Old 02-27-2011, 07:13 PM
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Originally Posted by Kubs
IHow much smaller is a small cap dizzy than the HEI one?
Just measured for you ;from intake face to top of dist
HEI 7 5/8" (to top of coil housing without boot retainer plate)

Small cap 6 7/8" ( to top of bare center terminal ,no plug boot )
Old 02-27-2011, 10:09 PM
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Originally Posted by rodj
Just measured for you ;from intake face to top of dist
HEI 7 5/8" (to top of coil housing without boot retainer plate)

Small cap 6 7/8" ( to top of bare center terminal ,no plug boot )
Wow, thanks! That is a pretty good difference, and probably enough to work. I think im going to go that route! I found an MSD at a good price.

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Old 02-27-2011, 10:19 PM
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Here's a picture of the hei with a remote coil.

Old 02-28-2011, 01:26 AM
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OK I give up why is the filter in the rear of the manifold?
Old 02-28-2011, 07:21 AM
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Originally Posted by ddahlgren
OK I give up why is the filter in the rear of the manifold?
Hood scoop.

Air hits the windshield and is forced back into the scoop.


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