*excludes Alaska, Hawaii & Puerto Rico

Gen 5 L83 L86 LT1 Cylinder Head to LT4 Tall Supercharger Adapter Plates Intake

In stock
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LT Cylinder Heads to LT4 Supercharger Adapter Plates

Compatible with: 2014 and newer V8 LT series engines

  • Includes: 2 adapter plates (2-1/2" thick) with 8 O-ring seals, 10 adapter to head bolts, and 10 supercharger to adapter bolts
  • Tall design allows the LT4 supercharger to clear the factory L83 / L86 water pump
  • Made in Wichita, Kansas from aerospace grade, USA produced billet aluminum
*not compatible with 2019 and newer truck water pumps (these pumps can be identified by having the water pump pulley in front of the camshaft) LT4 install parts list
  • 551790 accessory idler bracket
  • 551794 throttle body rotation adapter
  • WExxxx throttle body wire extension
  • 551782-M1215 coolant sensor relocation adapter
  • WECTS30-36 coolant sensor wire extension
  • 551383 supercharger vacuum plug
  • 551359 supercharger vacuum plug
  • SEN019 MAP sensor, 3 bar LT4
  • 980K6 belt (98.0 inch, K belt, 6 rib)
  • (ADM) 2.8" LT4 truck conversion pulley and hub (Corvette Supercharger only)
  • (ADM) supercharger pulley removal tool
  • Intercooler, pump, hoses, & quick connector

More Information

Bullet Point 1 Adapt LT cylinder heads to a LT4 supercharger
Manufacturer Part Number 551770
UPC 657814754584
Weight 14.000000
ICT Manufacturer ICT Billet
United States United States
Length Inches 17
Width Inches 3
Height Inches 3

WARNING - This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to


ALUMINUM: Most of the aluminum alloys used today contain some level of lead, usually less than .1%. Lead is known to the state of California to cause cancer and reproductive harm. Most aluminum alloys are physiologically inert in their solid form, and the lead is contained within, however user-generated dust and/or fumes may pose a hazard if inhaled or ingested. Heating beyond a certain temperature may also provide avenues for exposure.


STEEL (steel bolts):  Steel is an iron alloy with several metals including Nickel and Chromium. Both Nickel and Chromium are known to the State of California to cause cancer and reproductive harm, respectfully. This warning applies to stainless steels as well.