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Install Turbo Headers

9:25
29:05
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At 9:25 in

Twin Turbo Escalade Runs Again! The LSXcalade 427 2.0 FIRED UP!! (Final Assembly & Problems)

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What happens here

After installing the intake manifold, address the old O2 sensors. It is recommended to replace them, especially if the vehicle has been sitting for an extended period or was subjected to towing in various weather conditions, as they can become inaccurate. For turbo applications, use multi-layer steel (MLS) header gaskets, as they are less prone to leaking than traditional aluminum or graphite gaskets. When installing the headers, you may encounter an issue where the bolt lengths are incorrect for the specific engine heads (e.g., LS7 heads might require different length bolts than LS3 heads). If this happens, you can trim the existing bolts to the correct length using a drill and sandpaper or a bolt trimmer, being careful to maintain the tapered part of the bolt for proper seating.

Goal: Securely install headers with new O2 sensors and appropriate gaskets.

Tools and materials

  • Drill — Trimming bolts if necessary
  • Header Bolts — Securing headers
  • Multi-Layer Steel Header Gaskets Mahle — Sealing headers to the engine block
  • O2 Sensors — Monitoring oxygen levels in exhaust gases
  • Sandpaper — Smoothing trimmed bolts

What they say

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the old ones were starting to read funny it had been you know these have been in there since day one and they used to read pretty much dead nuts even on the double thing dlg thing but uh over time they would start to get different i don't know if that was from exhaust leaks or miscalibration or what but i figured after sitting for a year especially being towed across the country through the rain and everything these probably are you know good to good to change so we went ahead and changed those which should have done before put the intake manifold on because one of the connectors is behind there and that's why my hand is so beat up because i had to like it was just not not a good time when this thing first rolls out of here under its own power i don't want it to be on those factory wheels i want it to be on the welds which means we could give them a fresh polish job with that white diamond stuff oh great so that's my job right do you want it to be your job well it was that what you were suggesting i feel like that was yeah a little bit you're so good at cleaning stuff for me you want to clean it polishing is a skill do you guys think polishing is a skill well i like shiny things so i'm good at making things shiny exactly there you go she loves the polish things and i'm thinking you know what here's the because you can take the power cone on there and just go and god he'll look so good you're not even prepared for how epic this is going to be oh and drained all the old ethanol out of there because it was still had e85 in it from somewhere in austin texas fuel lines were wide open for a year so there's just pulling moisture in because e85 absorbs ambient moisture so if it's not sealed it'll kind of turn to crap but if it's sealed you're typically okay after we uh leave the gym tomorrow we'll head to the closest sheets and get some e85 to put in there yeah and yes we go to the gym basically every day does anybody else do that we're kind of like curious if there's any crossover leave a comment if you're a gym person too you know what time it is turbo time it's turbo time no well yeah but before that it's header time with the original header bolts all 12 of them still have them the ones that came from the factory in this thing are now being used to hold these on a little tech tip okay we're just charging the battery it's still held charged what did we charge this thing like two months ago three months ago yeah and it's still that's the original battery from…

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