I am just wondering if anyway has tried out the Intake Manifold from Edelbrock for the LT1?

 

Might want to try the "search" function. There have been quite a few posts on the Edelbrock manifold, but I don't know of anyone who is actually using one. Several people indicate they have bought them, but I don't recall anyone actually running an engine with one yet.

 

As mentioned, several people have bought them. There was one guy who posted pics of his motor build-up that has one freshly installed, but not yet run.

 

Problem is, I don't think anyone with one of these intakes will be putting them on a stock engine. So it will be difficult to discern if it's really better (then the LT4) or not.

 

Edelbrock has never brought good news to the LT1.... if the intake was worth a gain I'd be amazed. i'd buy one if I had LT4 heads that needed matching..... wait I do... and I still went with a ported GM OEM.

 

Exactly what i was thinking, maybe late model cars in general lol

 

I cant imagine that it would be totaly worthless. But for the money I doubt anyone will see much gains.

 

I will be receiving mine tomorrow as it just shipped from Edelbrock. My signature below indicates the mods I just put in the motor. I plan to start it up for the first time on Sunday if all goes well.

I won't be able to tell how much power the manifold produces by itself but I will let you know my observations of the manifold and quality of the product. I will take good pictures also.

Once the car is stable, I plan to have a dyno tune done by PCMforLess and I'll post the numbers for my setup if anyone is interested in the setup.

Jeff

 

i have the LT4 version(same as LT1 just painted red, even the casting number is the same#7107) on my 94 Z. I'm having the car dynoed the 30th, but i have no numbers to compare the two intakes (GMvs.edelbrock), since i could not get the car dynoed becasue the intake was sucking oil into the runners. i agree with everyones assessment that the edelbrock LTX intakes won't be a preformance ehnacing item. The intakes are just like the GM intakes(excrept for a few small details.) i needed one since my GM LT4 would not seal (oil in runners)no matter what intake gasket i used(even 12367777 gm gaskets). for the price of used GM LT4 intakes, i figued i shoudl get a new one. The new edelbrock one sealed great, and i didn't have to port the TB bores for a 58mm. i wish edelbrock woudl have sent all the pugs needed to plug the vaccum ports. i have to find some NPT plugs for the large vaccum ports on the drivers side and rear port between EGR connections.

 

This needs to be a sticky...

 

So yeah it seems I should just port my stock manifold since I will be using a 58mm and it will be equal to the edelbrock manifold. That is great because to port it is just a couple hundred bucks and the edelbrock manifold is 399.99 so save me a couple hundred bucks

 

if your gm one is in good shape (no leaks or warping), just port the stock one. there idenical....except of the area under the plenum, where Edelbrock removed aluminum(aka air gap gimmick)

 

So are you saying you regret getting the edelbrock one? in your pic on cardomain you have the edelbrock on in red so you have the LT4 one or you painted the LT1 red

 

Also the runner length is .250"'s longer and it comes ported for 58mm TB's.

 

I installed mine last night and put the motor back in the car. Haven't started it yet. I have some observations about it and lots of pictures. Problem is I got layed off end of last week so I don't have easy access to a computer to post them. I am using the library computer right now. I'll post them soon.

I installed the Edelbrock TB with the LT1 intake manifold. I had problems with the bolts that came with the TB. The bottom 2 holes in the intake are through holes so the mounting bolts tightened down with no problem.

The passenger side top bolt is a blind hole and the bolts supplied are too long so this one bottoms out before it tightens

The driver side top hole is not tapped all the way down so this bolt also has problems. Also, the holes on the Edelbrock TB are recessed which causes a problem with this bolt because the throttle linkage cover has a bracket that needs to mount under this bolt head.

I ended making all kinds of spacers to straighten this out. My advice is that make sure you buy a set of 8 x 1.25mm x 65mm long bolts (hardened) as the ones that come with the TB will not mount into the intake manifold properly.

I am calling Edelbrock today to see what they have to say. I'll update.

Also, I had to buy a 3/8 NPT plug for a hole in the back of the manifold between the EGR tube and valve. I also had to buy a 3/8NPT to 1/4NPT reducer bushing for one of the fittings on the left side of the manifold. This is the one where the little horshoe hose connects and goes to the PVC valve tight next to it.