LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Any way to improve LT1 intake?

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Old Dec 18, 2005 | 07:40 PM
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Default Any way to improve LT1 intake?

There are upgrades for the LS1 intake, such as an LS6 intake. Is there any upgrade for the LT1 intake? Im running a 383 with roughly 500-550 at the motor, nothing huge. Is the intake an area where I could free up any ponies? Thanks, Nick.
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Old Dec 18, 2005 | 08:15 PM
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fwiw i heard the lt4 intake improves upon the lt1's.
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Old Dec 18, 2005 | 08:17 PM
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Have it ported....Advanced Induction claims to be able to do some serious porting on a stock intake. They have a car running I think 10.1's on a stock intake N/A.
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Old Dec 18, 2005 | 08:47 PM
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I've heard mixed reviews on putting the LT4 on an LT1, too costly to retrofit it onto LT1 heads, and the gains are very minimal. Would it be worth it to port my stocker, what can I expect for gains? Is the stocker a bottle neck for power?
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Old Dec 18, 2005 | 08:52 PM
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Originally Posted by 94strokedz
I've heard mixed reviews on putting the LT4 on an LT1, too costly to retrofit it onto LT1 heads, and the gains are very minimal.
It is a complete waste to fit a lt4 intake to lt1 heads. You'll be wasting serious money. I got my stock intake gasket matched to the fel-pro gaskets I use when I painted it.
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Old Dec 19, 2005 | 03:14 AM
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unless you want to go to a custom instake there's not much u can do. going to the LT4 intake will do get you exactly nothing. there's a thread on this page somewhere that tells the exact differences between the LT1 and LT4 intakes.
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Old Dec 19, 2005 | 09:22 AM
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Ive heard of people cutting them open and welding in additional material to get more plenum volume, but unless your trying to break a record it would be overkill. Just match your gasket and blend that shape all the way through the port; Then smooth the entries into the port and open up the inlet to match a 58mm TB. That should be plenty sufficient for almost any setup.
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Old Dec 19, 2005 | 02:19 PM
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yea kinda lost in this area. nothing easy like for the ls1's. I did hear of a guy though that would do some nice port and polishing of it, then would take a plasma cutter and cut away a lot of the extra material not needed, so not only would it flow better but lose some lbs. i saw it somewhere on theformulasource, but havent heard anything about it in a long time
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Old Dec 19, 2005 | 05:46 PM
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Originally Posted by Chris95Z
fwiw i heard the lt4 intake improves upon the lt1's.
This is one of those persistent WRONG rumors. People ASSume that since the LT4 was a higher performance version of the LT1 the intake was improved, but that would again be an ASSumption not fact.
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Old Dec 19, 2005 | 06:05 PM
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Originally Posted by 96capricemgr
This is one of those persistent WRONG rumors. People ASSume that since the LT4 was a higher performance version of the LT1 the intake was improved, but that would again be an ASSumption not fact.
I wasn't telling him to go with the lt4 intake, the purpose was to merely offer an option to explore, simply because people have done it and have "claimed" it helped them, thanks though for the ASSerting yourself
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Old Dec 19, 2005 | 08:59 PM
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Anyone here ever had their LT1 intake extrude-honed? I'd imagine that's about as good as you could get without cutting and welding...
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Old Dec 20, 2005 | 03:38 AM
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see this post

https://ls1tech.com/forums/lt1-lt4-modifications/421605-considering-porting-intake-need-opinions.html

there are a few of us that play with them but it is no where cheap
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Old Dec 20, 2005 | 08:51 AM
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Originally Posted by 94strokedz
There are upgrades for the LS1 intake, such as an LS6 intake. Is there any upgrade for the LT1 intake? Im running a 383 with roughly 500-550 at the motor, nothing huge. Is the intake an area where I could free up any ponies? Thanks, Nick.

The 1997 LT1 intake matches the stock intake port on the LT1 heads (same port size and shape as the LT4 intake). I tried one on my car and it was no faster than the 94-96 intakes.

Daren
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Old Dec 20, 2005 | 09:18 AM
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Originally Posted by LTSpeed
Anyone here ever had their LT1 intake extrude-honed? I'd imagine that's about as good as you could get without cutting and welding...
My buddy just had an LT4 intake extrude honed... It gives a glass like polished surface and really smoothes all the airflow paths... But it only increases the size of the existing port in the shape it was cast... In other words, you need to reshape the ports with a hand grinder before sending them out... Otherwise they just get it as close to the gasket as they can, which leaves the wrong shapes created by the casting and a poor match to the gasket...
I hope that was clear enough, but if not let me know and I'll try to get some good pics of my buddy's intake. With the pics I will try to show the poorly shaped match to the gasket.
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Old Dec 25, 2005 | 02:36 PM
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Originally Posted by TwoFast4Lv
see this post

https://ls1tech.com/forums/showthread.php?t=421605

there are a few of us that play with them but it is no where cheap
nice looking intake? how much you letting them go for? as far as sheet metal intakes you cant run them on the street huh?
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Old Dec 26, 2005 | 04:08 PM
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I am selling my Converted Super vic with everything you need, Same intake that big rick ran on his Turbo 8.08 1/4 car. I have the center carbon Fiber peices and all. Comes with the 100 degree elbow, Polished 90mm TB, converted to Fuel injection (bungs welded in with polished looking fuel rails),
and converted to bolt-on. I have about 1650 in the whole setup that Bret Bauer is doing. Should get it back in a week along with my AFR LT4 heads that LE did. I am selling the WHOLE setup. All brand new never installed.

IF you guys want this badass intake (will improve the heads CFM numbers across the board and ultimatly let more air see the PISTON) I will sell it for 1250 SHIPPED to your door.
These intakes are about to start being the norm on high Hp cars. Hell the fastest guys run single plain's.
Let me know if anyone is interested. Thanks
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Old Dec 27, 2005 | 10:37 AM
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Originally Posted by T/A KID
I am selling my Converted Super vic with everything you need, Same intake that big rick ran on his Turbo 8.08 1/4 car. I have the center carbon Fiber peices and all. Comes with the 100 degree elbow, Polished 90mm TB, converted to Fuel injection (bungs welded in with polished looking fuel rails),
and converted to bolt-on. I have about 1650 in the whole setup that Bret Bauer is doing. Should get it back in a week along with my AFR LT4 heads that LE did. I am selling the WHOLE setup. All brand new never installed.

IF you guys want this badass intake (will improve the heads CFM numbers across the board and ultimatly let more air see the PISTON) I will sell it for 1250 SHIPPED to your door.
These intakes are about to start being the norm on high Hp cars. Hell the fastest guys run single plain's.
Let me know if anyone is interested. Thanks
can you send pics to badazcamaro@aol.com
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Old Dec 27, 2005 | 11:34 AM
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I would BUT Bret Bauer still has my intake and heads, When I get my stuff back I will Definatly advertise SELLING IT with pics and all. Right now I am just throwing it out there. PICS will come Very soon, just need to get the stuff back, lol
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Old Dec 27, 2005 | 11:45 AM
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i bought a port/polished stocker with egr block off plate... it is deffinately worth it if you have heads/cam... the LT1 intake is pretty restrictive... i would also get a bigger throttle body, and if you don't have ram air, get a cold air kit. just my .02
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Old Dec 27, 2005 | 12:48 PM
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Originally Posted by T/A KID
I would BUT Bret Bauer still has my intake and heads, When I get my stuff back I will Definatly advertise SELLING IT with pics and all. Right now I am just throwing it out there. PICS will come Very soon, just need to get the stuff back, lol
well ill be looking for it when ya get it back. im in middle of getting parts together for a rebuild so im interested
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