Gen 5 LT4 Cylinder Head to LT1 Intake Adapter Plates Intake Manifold (LT4 spacer)

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Gen 5 LT4 Cylinder Head to LT1 Intake Adapter Plates Intake Manifold

Browse more LT swap intake manifold components.

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.

LT4 Cylinder Heads to LT1 Intake Manifold Adapter Plates
*** Some intake manifolds will require modification of alignment pin to sit flush on adapters*** 


  • Compatible with: 2014 and newer V8 LT4 series heads
  • Includes: 2 adapter plates (1/2" thick) with 8 O-ring seals and 10 flange to head bolts
  • Made in Wichita, Kansas from USA produced 6061-T6 billet aluminum
  • Can also be used as an intake manifold spacer for LT4 bolt pattern supercharger or intake


*note: these plates will be raised on the lower edge until the intake manifold is installed and tightened down to compress the adapter seals



American Made, Premium Materials
We only use premium grade, USA-produced materials for our parts at ICT Billet. We engineer all our own parts in Wichita, KS, using American made equipment to produce them. Our goal is to always use as many USA-made components as possible. For any components not manufactured directly by our team at ICT Billet, we use materials manufactured in the USA for reliability. It’s important to us to keep jobs in America and for you to get the best parts possible.
Exceptional Quality
You should never have to sacrifice quality for affordability. That’s why we make swapping an engine into your vehicle affordable by utilizing the most efficient manufacturing technologies in our facility. We offer a full line of LS swap components from engine mounts to wiring. As a SEMA member we take pride in being part of an elite group of automotive manufacturers. We provide the highest level of quality and development into our products.
Extensive Research and Development
At ICT Billet, we utilize the latest in technology to ensure each product fits the first time. Our in-house team of engineers work diligently to design and create the best possible products so that you can avoid the headaches and frustrations of cheap, poorly manufactured LS swap parts. Before any product hits the shelves, we laser scan each vehicle. From there, our team works to produce a solid model for test fitting to ensure a perfect fit every time.

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