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Lse9x LS Swap 1-7/8 Long Tube Headers

Lse9x LS Swap 1-7/8 Long Tube Headers

Regular price $850.00 USD
Regular price Sale price $850.00 USD
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1 7/8" runner diameter true long tube header designed specially for Ls Swapped e9x/e8x chassis (RWD subframe only).   Will fit 4l80e (requires ears trimmed on bellhousing), 4l60e, t56/6060 transmissions as well as many others.  Headers only, gaskets, bolts only, no other piping included



  • 1-7/8" long tube runners (vs 1.75"" short runner of competitors)
  • Stainless steel mandrel bent design with minimized runner welds
  • 3" slip connection with velocity spike merge collector
  • Fully welded runners to flange inside with ported opening 
  • Designed for spark plug and wire clearance (see photos)
  • Optimal starter clearance (can be removed with headers installed)
  • Includes 2x MLS ls exhaust gaskets (not graphite JUNK)
  • Includes 12x m8 flange bolts
  • Headers do NOT have 02 bungs to allow for various applications, O2 bung can easily be added to collector or exhaust after header. 
  • Relocation of factory fuel line feed closer to frame rail required. 
  • Headers may require slight trimming and modifications per application and engine location.
  • Gen1 (plate style) lse90 swap mounts may require slight modification for clearance. 
  • Installation from bottom, Support engine and remove engine mounts one at a time to install.  
  • WILL NOT CLEAR 6 Bolt heads or block without modification to #1 runner on driver side. 
  • Designed around RWD LSe90 mounts run it the engine far forward position for firewall and steering shaft clearance.  X-drive RWD conversions may need crossmember modifications of mount extension for forward engine mounting. 
  • 1" thick oil cooler adapters only
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