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Questions about the LT4

This is a discussion on Questions about the LT4 within the LT1 forums, part of the Vehicle Specific category; I put a 96 corvette LT4 motor in my 96 Transam but used the computer off of my LT1 and ...

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    Question Questions about the LT4

    I put a 96 corvette LT4 motor in my 96 Transam but used the computer off of my LT1 and i was told that i would never get the full performace of the lt4 until i put the lt4 computer in also or used a programmer on my lt1 computer. Anybody got any idea what to do. Any info would be very helpful.

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    Senior Member 440 rwhp trans am's Avatar
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    Quote Originally Posted by firebirdlt4 View Post
    I put a 96 corvette LT4 motor in my 96 Transam but used the computer off of my LT1 and i was told that i would never get the full performace of the lt4 until i put the lt4 computer in also or used a programmer on my lt1 computer. Anybody got any idea what to do. Any info would be very helpful.
    lol well you do need a tune but it has the same obII computer as your lt1, its just programed for the lt4 specs if you need a tuner this guy is the best
    http://www.nelsonperformance.com/

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    Thanks 4 the info. Also if anybody knows somebody with a LT4 intake i sure could use one i had to put my lt1 intake on my lt4.

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    Senior Member 440 rwhp trans am's Avatar
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    yeah i got one from jegs it was 475 shiped and its the air gap. have it ported and polished

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    i'll check with jegs, also you might know what size injectors would be the best to run on my lt4. Thanks

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    Senior Member 440 rwhp trans am's Avatar
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    well mine is a 383 and i got 30lbs i think you could do the same. its a good start i need bigger because im going to procharge. if you want you could pm me i got a new lt4 intake and im selling the injectors they only have 2k miles on them they were like 350+ new. ill get rid of them both for a good price.
    pic of the intake


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    and one of my baby

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    hey how do you pm somebody i'm pretty new to these forums. I would be very interested in getting that intake & injectors

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    Senior Member 440 rwhp trans am's Avatar
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    Quote Originally Posted by firebirdlt4 View Post
    hey how do you pm somebody i'm pretty new to these forums. I would be very interested in getting that intake & injectors
    lol yeah your 2 new to pm. umm like i said the lt-4 intake is brand new,(i dont need it because im going forced induction) and it was $475 the injectors are accel 30lbs and they were $350+ and have 2k miles on them. um ill give you both for $650 and ill pay for shipping.

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    how much if i drive up there to houston and would you save them 4 me until next weekend (dec.29-dec.30) cause that is a hell of a deal

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    Senior Member 440 rwhp trans am's Avatar
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    Quote Originally Posted by firebirdlt4 View Post
    how much if i drive up there to houston and would you save them 4 me until next weekend (dec.29-dec.30) cause that is a hell of a deal
    yeah i will save them for you. ill do 625 bottom line no less. i can ship for almost nothing got a friend that works for fed ex. but pick up would be better. but it sounds like we have a deal. my cell # is 936-443-8053 and the name is matt.

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    Sounds like a deal to me also i got your # and i will give you a call whenever its a good time 4 you. I am at work right now i work nights so is tommorow fine if i give u a ring. My cell # is 817-487-5275 (Walt)

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    Senior Member 440 rwhp trans am's Avatar
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    Quote Originally Posted by firebirdlt4 View Post
    Sounds like a deal to me also i got your # and i will give you a call whenever its a good time 4 you. I am at work right now i work nights so is tommorow fine if i give u a ring. My cell # is 817-487-5275 (Walt)
    cool you can call me at any time. well except right now the mrs. is sleeping. lol well glad i could help!

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    sounds good. I appreciate the help also. Talk 2 you tommorow

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    I would love to have an LT4 intake

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    Quote Originally Posted by JwMonE99 View Post
    I would love to have an LT4 intake
    yeah it looks good.

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    That too but I still have an LT1 intake lol

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    Quote Originally Posted by firebirdlt4 View Post
    I put a 96 corvette LT4 motor in my 96 Transam but used the computer off of my LT1 and i was told that i would never get the full performace of the lt4 until i put the lt4 computer in also or used a programmer on my lt1 computer. Anybody got any idea what to do. Any info would be very helpful.
    The only difference will be the knock module on your OBDII is more sensitive than the LT4 OBDII, but you can buy the KM for the LT4 and plug it right into your OBDII

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    Quote Originally Posted by 440 rwhp trans am View Post
    Click for full size
    and one of my baby
    Click for full size


    Nice looking motor.....

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    Quote Originally Posted by qwk93ta View Post
    Nice looking motor.....
    thank you! I will take more pics on this next rebuild!! I can't wait!!! 383 lloyd elliot stage 3 with a procharger should go!!

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