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

LT1 to LQ4

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Old Jan 28, 2012 | 04:40 PM
  #41  
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Pretty much any Coil Packs will work as long as they match the Valve Covers(the 1997/1998 stuff is different), it'll be harder to pass emissions the more you modify it..a good tuner might be able to get it to pass.
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Old Jan 28, 2012 | 08:01 PM
  #42  
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i will go with shorties then. il keep all emission parts.
il have to get some sort of exhaust pipes to connect to my magnaflow catback exhaust to y pipe to headers.
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Old Jan 28, 2012 | 09:14 PM
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IIRC the truck coils hit the heater box in an fbody. Depends what is required for your etest. I have LTs with cats and can pass the dyno sniffer test with a cam. EGR, AIR, EVAP all intact too.
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Old Jan 29, 2012 | 06:45 PM
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So if i get LT's w/CATs do i need to have a muffle ? to pass

Just curious what kind of LS instake i can put on the LQ4.
LS1 etc.
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Old Feb 2, 2012 | 03:39 PM
  #45  
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Anything Cathedral Port..given that you still have the stock Heads.
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Old Feb 2, 2012 | 07:49 PM
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im keeping Stock LQ4 heads.

i have been doing some research. Seems like alot of the LS1 Wire Harness they have out there dont have the connections for emissions. anyone have any clue?

nevermind i found this one. just seems to pricey.
http://howellefi.com/ls1-harness-199...ion-4l60e.html
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Old Feb 6, 2012 | 08:18 PM
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Originally Posted by 96lt1m6
I can assure you this, mine definitely is not going to be a slap together! My Lt1 gave me many years of reliable service, the mystical opti NEVER was a problem it was coming time for some upgrades and I want 450-460 hp at the tire and the Ls platform will give it to me.
An Advanced Induction LT1 setup is EASILY capable of 450-460 rwhp through a stalled auto and a 9".
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Old Feb 6, 2012 | 08:18 PM
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The_Merv could prob do you a harness....He did mine
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Old Feb 6, 2012 | 08:28 PM
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is there a way to convert the LT1 wire harness to the LS1 harness?
im assuming the differences are the connectors? on some of them.
Il contact The_Merv for sure.
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Old Feb 6, 2012 | 08:32 PM
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Originally Posted by FlatBlackZ28
An Advanced Induction LT1 setup is EASILY capable of 450-460 rwhp through a stalled auto and a 9".
460 to the wheels through a unlocked stalled auto and a 9" is a tall order for factory ported LT1 heads.....not saying it can't be done but I would not say "EASILY"

I don't think you would want to do it that way twice as much work and you still have to buy all the LS connectors and run extra wie for the coils and such... much more of a pain... You will want to modify an LS1 haress
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Old Feb 6, 2012 | 08:55 PM
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Originally Posted by MattSapp95_T/A
460 to the wheels through a unlocked stalled auto and a 9" is a tall order for factory ported LT1 heads.....not saying it can't be done but I would not say "EASILY"
AI has proven that 450rwhp is no big deal. 10 years ago I would have probably been banned for saying such things.

They have also proven that 550rwhp is possibly through an A4 out of ported stock LT1 castings and a ported stock LT1 intake on pump gas.
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Old Feb 6, 2012 | 09:18 PM
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Power can be made directly proportional to the amount of money you want to spend..

I went LS cause of the aftermarket.
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Old Feb 6, 2012 | 09:41 PM
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Originally Posted by the_merv
Power can be made directly proportional to the amount of money you want to spend..

I went LS cause of the aftermarket.
Correct, the LS engines have a much bigger aftermarket.
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Old Feb 6, 2012 | 10:09 PM
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Originally Posted by FlatBlackZ28
AI has proven that 450rwhp is no big deal. 10 years ago I would have probably been banned for saying such things.

They have also proven that 550rwhp is possibly through an A4 out of ported stock LT1 castings and a ported stock LT1 intake on pump gas.
that depends on you definition of "no big deal" if a complete new bottom end bored and stroked to a 383, custom cam, 2k in ported heads, rockers, push rods, intake, headers, throttle body full bolt ons, tune etc is "no big deal" then i suppose you are right....

i don't see to many making 460 through a Unlocked stall with with a 9"

Don't get me wrong I am as big of fan as Advanced induction as everyone elses...
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Old Feb 6, 2012 | 10:48 PM
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Originally Posted by MattSapp95_T/A
that depends on you definition of "no big deal" if a complete new bottom end bored and stroked to a 383, custom cam, 2k in ported heads, rockers, push rods, intake, headers, throttle body full bolt ons, tune etc is "no big deal" then i suppose you are right....

i don't see to many making 460 through a Unlocked stall with with a 9"

Don't get me wrong I am as big of fan as Advanced induction as everyone elses...
It's very comparable (dollar wise) to what it takes to put an LS1 with an unlocked auto through a 9" to the same power levels.
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Old Feb 6, 2012 | 11:20 PM
  #56  
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Match cube for cube I bet the LS makes more power..just the design of the Engines..and then again what Ignition System are we comparing?

Stock LT1 PCM, Tuned, compared to the stock 0411 LS1 PCM, Tuned?

There is alot of variables here..but dollar wise, yes, it might be close. Stroker Rotating Assembly is goin to be roughly the same price, Aftermarket Heads, Cam, Machine Work, Valvetrain, Intake Setup..kinda the same parts here..so to say cost is close is a moot statement, JMO..

In the end of the day it's just like I said, how much you feel like spending.
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Old Feb 6, 2012 | 11:33 PM
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Originally Posted by the_merv
Match cube for cube I bet the LS makes more power..just the design of the Engines..and then again what Ignition System are we comparing?

Stock LT1 PCM, Tuned, compared to the stock 0411 LS1 PCM, Tuned?

There is alot of variables here..but dollar wise, yes, it might be close. Stroker Rotating Assembly is goin to be roughly the same price, Aftermarket Heads, Cam, Machine Work, Valvetrain, Intake Setup..kinda the same parts here..so to say cost is close is a moot statement, JMO..

In the end of the day it's just like I said, how much you feel like spending.
Maxing out each cube, yes the LS motor makes more power. But dollar for dollar, it costs about the same to make the same amount of power (to a certain point). LT1 heads are generally cheaper and a ported LT1 intake can make a decent amount of power, where the LSX guys generally go with an extremely high priced FAST setup. Not to mention how much cheaper it is to purchase an LT1 or an LT1 equipped vehicle. For every "steal of a deal" someone claims to find out there for a good LS1 fbody, there are 2 LT1 fbodies for half that price.
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Old Feb 6, 2012 | 11:43 PM
  #58  
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It's all what you want to do..

Me personally I dont look for the LT or LS equipped vehicles..I find a qualified chassis, and "equip" it.
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Old Feb 7, 2012 | 12:09 AM
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Hmmmm I have too disagree with a lot said here is why, for starters my buddy has an Ls1 he dynoed with a bone stock shortblock w/34k on it,stock Ls6 heads and intake with a cam g5X4 to be exact,3600 stall 416hp/392tq NO F.A.S.T intake nothing trick done heads were stock take offs! Do that with an Lt1 ain't happenin..........

I love my Lt1 she is a great performer but the Ls platform is just simply awesome! Both will be roughly the same investment once matched up however the edge goes to modern technology.
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Old Feb 7, 2012 | 12:59 AM
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Originally Posted by FlatBlackZ28
Maxing out each cube, yes the LS motor makes more power. But dollar for dollar, it costs about the same to make the same amount of power (to a certain point). LT1 heads are generally cheaper and a ported LT1 intake can make a decent amount of power, where the LSX guys generally go with an extremely high priced FAST setup. Not to mention how much cheaper it is to purchase an LT1 or an LT1 equipped vehicle. For every "steal of a deal" someone claims to find out there for a good LS1 fbody, there are 2 LT1 fbodies for half that price.
One of the major benefits comes from being able to buy a $650 set (new) of LS3 heads and slap them on (unported) just about any garden variety 6.0 and make excellent power. Some are willing to drop $1k on a FAST intake (I myself haven't been impressed with the LS3/L92 version of the intake enough to lighten my wallet for one), I'll stick with the LS3 thanks, lol. However, like you said, the LT1s are a dime-a-dozen and are solid performers, but, as said above, 460 to the wheels with a 9" and an unlocked converter is a tall order for an LTX. RamAir95TA would be a good source to ask about what it takes to have 455 rwhp LTX combo (383, 4l60e, 9", AI 200's).

Last edited by 93Z2871805; Feb 7, 2012 at 01:15 AM.
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