C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

lt4 headers advice

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Old Jul 29, 2023 | 08:13 PM
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Default lt4 headers advice

Hello I have a bone stock 96 lt4 car that I would like to add headers to. I however would like the most pain free installation possible and would prefer to get headers that allow for this. I would like to not go nuts on cost but I will if it means easier install. I do not wish to have to bend pipes or fabricate brackets. I have heard TPIS and ARH are like this but TPIS is not available and ARH says something about needing an oil filter adapter on their website. Can anyone who was recently installed ARH confirm this? Or recommend any other options! Thanks!!!
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Old Jul 29, 2023 | 11:20 PM
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Not sure if it matters, and I am not sure if it makes a difference in potential recommendations, but do you need the car to pass smog?

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Old Jul 29, 2023 | 11:25 PM
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Smog doesn't matter.
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Old Jul 30, 2023 | 12:41 AM
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I installed Hooker 1 3/4" on my 1990 L98. They make a couple different models and ones for Angle Plug Heads and Straight Plug. It is confusing because they are referring to the Factory D Port Cylinder Heads witch have the Angled Plugs. So the real difference is the Header Flanges and what shape the Ports are. I used aftermarket Heads with straight Plugs and the Spark Plug Caps are very close to the Headers even though I did my share of Torch and Socket bending. Had I only used angle Plug Heads I wouldn't of had to do a thing. Other than that they bolted right on. Any 1 3/4 Header is going to be very tight where the Head bolts go in.
On another note when removing the Lower A Arm bolts one must remove a Factory stiffener bar to get the Bolt out. No big deal till you put Headers on because now you can not reach one of the bolts with out removing the right side Header ! But if You plan ahead just bore a hole in the stiffener bar at the right spot for the Bolt to slip threw and you can just leave the Header alone.
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Old Jul 30, 2023 | 11:14 AM
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I used EM Exotic Muscle, expensive but great fitment.
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Old Jul 30, 2023 | 02:37 PM
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I used Stainless Works long tubes on my 96 LT4 back in the day. I was very happy with them.
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Old Jul 30, 2023 | 03:55 PM
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I've had Stainless Works headers & RT cats into the stock cat-back exhaust on my 95 for more than a dozen years now. Sounds great and no fitment or leak issues. No pipes had to be bent no brackets had to be fabricated but ........ they were not inexpensive back then and they are not inexpensive today. My suggestion is that you save your pennies until you can afford a top quality set.
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Old Aug 3, 2023 | 01:22 AM
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Originally Posted by fredk
I used EM Exotic Muscle, expensive but great fitment.
They do have 2 options, while the 1 7/8 are $1495, the 1 3/4 are $899 (both full length ceramic coated)
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Old Aug 7, 2023 | 05:56 PM
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What all is going to be involved in removing and replacing the header on the right bank? Has headers on it now but they are rusted out. 90 C4 L98 convertible.
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Old Aug 7, 2023 | 08:21 PM
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Is the AC system still charged and working ? I'm pretty sure there is a way to unbolt the components and set them aside with out loosing the Freon. Mine was long gone and I was going AC delete so a Sawzall was implemented. I had to unbolt the starter but not remove it. The last bolt in the header flange can be challenging. Since I removed the Evaporator from my car I can actually see this bolt quite easy.
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Old Aug 8, 2023 | 11:40 AM
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Originally Posted by Gale Banks 80'
Is the AC system still charged and working ? I'm pretty sure there is a way to unbolt the components and set them aside with out loosing the Freon. Mine was long gone and I was going AC delete so a Sawzall was implemented. I had to unbolt the starter but not remove it. The last bolt in the header flange can be challenging. Since I removed the Evaporator from my car I can actually see this bolt quite easy.
HI, thank you for the info. AC still in place but I think I can move it out of the way. My biggest worry is that last bolt on the right bank. I was concerned about having to lift the engine in order to reach it. I have asked around to some of the shops I trust, and no body wants to touch it.
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