After market lt manifold
Registered User
Joined: Apr 2004
Posts: 144
From: mobile al
re
you guys are looking at a Stealth Ram manifold on djexotic08 post it is readily availabe through mail order catalogs. you will need to convert the bolt holes for a LT 1 intake, the vortec style should be easier, and you will need to cut your cowl and remove the wiper and you can run it as it sits. It work'd great on a solid roller 383 BTW
Registered User
Joined: Jun 2000
Posts: 1,764
From: North Canton, OH
But this intake is volume wise almost twice and runner height is .15" more than my fully ported LT4(which is bigger than LT4 intake gaskets)...basically ported AFR raised runner heads IMO.
There is no comparision between my fully ported LT4 intake and what I have now.
Registered User
Joined: Aug 2003
Posts: 2,925
From: Detroit
It disgusts me that LT1s are over 10 years obsolete and we still dont have an aftermarket intake manifold thats worth a damn. If fabrication was easier everyone would be making their own, intakes are not that advanced!
earth to manufacturers: THIS IS WHAT WE NEED and ready to go out of the box at a reasonable price!!
earth to manufacturers: THIS IS WHAT WE NEED and ready to go out of the box at a reasonable price!!
Banned
Joined: Apr 2000
Posts: 1,444
Here's a crazy thought.
Why not simply cut he top off the Lt1 manifold, build stacks around the runners entries
to make them slightly taller, then weld the top back on? That should accomplish
everything we need without too much labor. The fact that the runners stick up into the plenum
shouldn't be too huge of a deal.
OR, simply make a spacer that fits under the manifold and raises it further above the heads.
Your runner would end up with a bit of an S shape, but you'd still have the longer runners.
I'm no machinist, and certainly not qualified to design a manifold.
But those are ideas I'd been wondering about.
Why not simply cut he top off the Lt1 manifold, build stacks around the runners entries
to make them slightly taller, then weld the top back on? That should accomplish
everything we need without too much labor. The fact that the runners stick up into the plenum
shouldn't be too huge of a deal.
OR, simply make a spacer that fits under the manifold and raises it further above the heads.
Your runner would end up with a bit of an S shape, but you'd still have the longer runners.
I'm no machinist, and certainly not qualified to design a manifold.
But those are ideas I'd been wondering about.
Registered User
Joined: Aug 2007
Posts: 746
From: Bennett N.C.
Is this for the Lt1 or sbc , whats up with the thermostat pad?
I have wanted to ask what improvements could be done to the lt1 intake to make it better?
Iv read the plenum needs to be bigger, longer runners...
how much bigger and longer?what shapes
draw me one up
I have wanted to ask what improvements could be done to the lt1 intake to make it better?
Iv read the plenum needs to be bigger, longer runners...
how much bigger and longer?what shapes
draw me one up
Registered User
Joined: Aug 2002
Posts: 4,676
From: Melvindale, MI, US
its a modified SBC intake, hence the t-stat pad
Registered User
Joined: Oct 2002
Posts: 969
From: Arkansas
Don't know how many people would be interested but, I am getting pretty close to being done with this custom intake
I'll talk about it in detail when its finished. But think larger plenum, better entry into the runners, slightly longer runners, straight runners, runners have more volume, weighs roughly half of a stock intake, 2 piece design (removable top), air gaped, and should cool a lot quicker than the stocker.
This pic is over a month old, should be compelety finshed in the next 2 weeks hopefully.
I'll talk about it in detail when its finished. But think larger plenum, better entry into the runners, slightly longer runners, straight runners, runners have more volume, weighs roughly half of a stock intake, 2 piece design (removable top), air gaped, and should cool a lot quicker than the stocker.
This pic is over a month old, should be compelety finshed in the next 2 weeks hopefully.
Registered User
Joined: Mar 2008
Posts: 172
If you check out that link over on tech it tells ya what all they have done, pricing etc. Basically they took the HSR and redesigned it to fit the LT motors. They have different options available and it has been awhile since I last viewed the thread so IDK how close they are to a release or what kind of numbers it has put down.
Registered User
Joined: Jan 2003
Posts: 165
From: Lengede
If you check out that link over on tech it tells ya what all they have done, pricing etc. Basically they took the HSR and redesigned it to fit the LT motors. They have different options available and it has been awhile since I last viewed the thread so IDK how close they are to a release or what kind of numbers it has put down.
I meant Cantonracer and T/A KID. I've been following T/A KIDs progress for quite a while, and Cantonracers intake looks really great.
The trouble is, nobody goes so far as to make a before and after dyno run!!!
Registered User
Joined: Mar 2008
Posts: 172
Actually I was referencing post #16 more or less. But to further what you have touched upon the R&D on the one I mentioned is being done or has been done, like I said I haven't checked on it in awhile and it is a sticky on tech if you wanna go read it. It is only like 40 pages long lol.
Registered User
Joined: Jan 2003
Posts: 165
From: Lengede
Actually I was referencing post #16 more or less. But to further what you have touched upon the R&D on the one I mentioned is being done or has been done, like I said I haven't checked on it in awhile and it is a sticky on tech if you wanna go read it. It is only like 40 pages long lol.