My LT1 type intake on L98 with EGR
My LT1 type intake on L98 with EGR
Look at this intake i found on Ebay.
It still needs to have the water outlet reworked. I think the EGR setup and factory dist hole is very trick.
It still needs to have the water outlet reworked. I think the EGR setup and factory dist hole is very trick. Originally posted by u r sofa king we tah did
WTF, who made that.
n/m
looked closer, its photochopped
WTF, who made that.
n/m
looked closer, its photochopped
Originally posted by u r sofa king we tah did
no that is a photoshop job. why in the world would gm put 2 egr ports. and the blend to match in the other egr port isnt too great. photoshop all the way.
no that is a photoshop job. why in the world would gm put 2 egr ports. and the blend to match in the other egr port isnt too great. photoshop all the way.

One side is the feed tube from the exhaust manifold (the way the LT1's have always been) and the other side is the valve itself. Look at any Corvette, Edelbrock, Accel tpi base and they all have "2" ports since there are no EGR passages in the head.
The blending is because the manifold was rough cast and hand blended. But nevermind...
KR
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I have seen them before I have been trying to track one down for about 6mos. now. I posted on camaroZ28.com and no one knew what I was talking about. I would love to find one of these and run vette heads.
Will do I have looked all over and people tell me that there is no such thing and others tell me that it was just a myth. But I saw one on a guys website and haven't been able to find one sense. When I ask about it everyone tells me it is a carbed intake that I am talking about
They were telling me that the intake was the one that gm sales that is for putting a carb on a LT1. Scoggins Dickey sells it GM part number for the carb styles are as follows:
LT1 carbed intake 24502592
LT4 carbed intake 24502574
LT1 carbed intake 24502592
LT4 carbed intake 24502574
Originally posted by u r sofa king we tah did
WTF, who made that.
n/m
looked closer, its photochopped
WTF, who made that.
n/m
looked closer, its photochopped
This is the picture from the ebay auction.
The intake is a prototype look at the bolt holes all of them are at 72 degree angle with the 1st gen bolt location very strange.
The only number on it was RR 9287
Anyone know more about this intake.
Jerry
Originally posted by Steve91Z28 L98
Those pictures are two different intakes. Do you actually own one of these? If so, what did you pay for it?
Those pictures are two different intakes. Do you actually own one of these? If so, what did you pay for it?
The intake has had the throttle body relocated up .850 for more room to mount a thermostat housing on the front and the rear was notched for the fuel crossover. Also the intake ports have been raised .250 to match up to a set of pro-action 220cc heads.
The amount was $150 for the auction.
Still the question is any one have info on this intake.
One other thing you can see it has the 3rd gen EGR not the LT1 type.
Jerry
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Originally posted by u r sofa king we tah did
no that is a photoshop job. why in the world would gm put 2 egr ports. and the blend to match in the other egr port isnt too great. photoshop all the way.
no that is a photoshop job. why in the world would gm put 2 egr ports. and the blend to match in the other egr port isnt too great. photoshop all the way.
Member
Joined: Jul 1999
Posts: 437
Likes: 0
From: Atlanta, GA/ Clemson, SC
Car: 1991 Camaro Z28
Transmission: T56
Very nice. I'm impressed with what you've done with it. Do you have any more pics of it from different angles? So this intake has the standard bolt pattern also? Another question: Does water flow through the front of the intake? I'm interested in how you plan to make the thermostat housing. This is a very interesting thread.
Hi Steve
The intake was standard sbc bolt pattern when i got it. The bolt holes had the 72 degree angle on all of them not just the center two. After a weld up and redrill now it's bolt on to any standard small block. The next problem was the heads that i have the intake ports are so tall ( 2.250 tall ) that the port had no sealing area on it so we just welded the intake one more time and now it fits with a good amount of gasket area. The last problem on this was the water outlet. I was going to do it the same way you guys did but i wanted the factory look so it's move the throttle body up and install the t-stat on the front. It's all most done than just a trip to the powder coat shop and finsh mill all the gasket serfaces and it will look factory i hope.
Jerry
The intake was standard sbc bolt pattern when i got it. The bolt holes had the 72 degree angle on all of them not just the center two. After a weld up and redrill now it's bolt on to any standard small block. The next problem was the heads that i have the intake ports are so tall ( 2.250 tall ) that the port had no sealing area on it so we just welded the intake one more time and now it fits with a good amount of gasket area. The last problem on this was the water outlet. I was going to do it the same way you guys did but i wanted the factory look so it's move the throttle body up and install the t-stat on the front. It's all most done than just a trip to the powder coat shop and finsh mill all the gasket serfaces and it will look factory i hope.
Jerry
Originally posted by Earl 87gta
How did you move the TB up and I like the NOS set up what did you use to do that as well.
How did you move the TB up and I like the NOS set up what did you use to do that as well.
The nitrous kit is the same one that is installed on top just mounted under the intake so the motor looks a little more stock. It will be setup for 200hp and the plate stage at the TB will be 100hp for a total of 300hp of spray.
Added a picture from last year before the sand blast job on it.
Jerry
Originally posted by JERRYWHO
To move the TB up all you have to do is mill, cut, form, weld, grind and sand blast and its done.
To move the TB up all you have to do is mill, cut, form, weld, grind and sand blast and its done.
Nothing like seeing a nice RARE factory prototype manifold with thousands of man hours of engineering work go down the toilet to be hacked up. Jesus thats the worst modification job I've seen in years.
I think I'll go puke now.
TGO Supporter
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Joined: Jul 1999
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Originally posted by GhoSSt
:lala:
Nothing like seeing a nice RARE factory prototype manifold with thousands of man hours of engineering work go down the toilet to be hacked up. Jesus thats the worst modification job I've seen in years.
I think I'll go puke now.
:lala:
Nothing like seeing a nice RARE factory prototype manifold with thousands of man hours of engineering work go down the toilet to be hacked up. Jesus thats the worst modification job I've seen in years.
I think I'll go puke now.
Originally posted by JERRYWHO
To move the TB up all you have to do is mill, cut, form, weld, grind and sand blast and its done.
To move the TB up all you have to do is mill, cut, form, weld, grind and sand blast and its done.
It looks like more work than an LT1 intake would have been. I'm sure it will look great when you are finished. Don't forget to post pics of it in the car.
well, wasn't that rude of that ghost guy... I don't think it looks the best, but at an engineers stand point, I think you've done a great job... besides. this engine will probably pull just as hard as a miniram setup. Good work.
Originally posted by nblanchard
well, wasn't that rude of that ghost guy...
well, wasn't that rude of that ghost guy...
I don't think it looks the best, but at an engineers stand point, I think you've done a great job...
Any engineer with an iota of skill would demand imperical, factual data before declaring "great job". Not to mention the fact that rare engineering parts often fetch thousands of dollars a few years after the fact.
Senior Member


Joined: Mar 2001
Posts: 629
Likes: 10
From: New Yuck
Car: Non F-body :(
Engine: Pontiac 301
Transmission: TH350
If you're interested in some "rare engineering parts" then have I got a deal for you... I have some GM large-tube runners/siamesed plenum and base (non-siamesed, used a file to open the bolt holes) that I'm taking off the car for my superram install. Wanna buy 'em ? *G*
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