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Holley LT1 Throttle Body 1994-97 5.7L TPI Camaro/Firebird


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LT1 Throttle Body 1994-97 5.7L TPI Camaro/Firebird
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LT1 Throttle Body
  • 1994-97 5.7L TPI Camaro/Firebird
  • Twin 58mm
  • Free Shipping - Ships

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    112-509 is rated 2.5 out of 5 by 2.
    Rated 4 out of 5 by from Works as good as it looks Very satisfied with the design of the product. Parts and sensors swap easily with the original throttle body which makes it a no hassle upgrade. It is heavier than the stock version but it's well worth the added airflow and strength of the part. I bought this for my 94 Camaro and plan to install a procharger, so the billet construction makes it more reliable for this application. The only issue is that the screws holes are more shallow than the stock throttle body so the screw on the top left corner will be up against a sensor. To fix this you can either chip a piece of the sensor off, shorten the end of the screw or add more washers to the screw. If you're using the original intake with this size throttle body you're going to have to bore out the holes to match the throttle body.
    Date published: 2016-02-07
    Rated 1 out of 5 by from Poor quality control. This Holley throttle body did not work properly. Butterflies were not closing all the way and were sticking at idle, causing ruff idle. The TPS could not find idle. I had to take butterflies apart and machined out the holes to fit. This cost money after the sale to make work. The appearance is a beauty under the hood. I painted the Holley name a bright red to show up better. The intake port on the centre head can be machined out for better air flow. If you decide to supercharge or nitrous it will allow more air flow. Stock is not needed. I also purchased the water bypass kit. Summer car only. I believe this is very poor quality control on this product. I could tell in my hand it was sticking before I installed. But I figured Holley knew what they were doing. When held up to light I could see dark and light areas around both sides, shows not closing properly. Not impressed with part. At least mine is fixed and seems to work. Have not had on road after repair for final test. Get up to temp and see how it all works. Fingers crossed. I may have fixed the TB but I voided any warranty by machining to make it work. So if not fixed it goes in trash.....Thanks.
    Date published: 2021-08-08
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    how much HP does it ad to a 95 Z28 LT1 stock engine

    Asked by: crash6969
    It will depend on other modifications, this will provide more airflow if the engine has been modified.
    Answered by: Rusty B
    Date published: 2020-07-19

    Will this work on a stock lt1?

    Asked by: Jonjon128
    This does fit a stock LT1 from '97 to '97.
    Answered by: Jon Jegs Tech
    Date published: 2020-11-26

    Will it fit on 96 impala ss

    Asked by: Joe214
    No, this is not designed for your application, it fits Camaro & Firebird models.
    Answered by: Rusty B
    Date published: 2018-02-14
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