ICT Billet

LS Cathedral Port Cylinder Head to Rectangle Port Intake Manifold Adapters

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  • Regular price $199.99
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*** Some intake manifolds will require modification of alignment pin to sit flush on adapters***


Can ONLY be used with Cathedral Port Cylinder Heads
  • Compatible with: ANY Cathedral Port Heads and will adapt to ANY rectangle port intakes, supercharger or blower.
  • Will not fit raised port LS7 intakes
  • Package Includes: 2 adapter plates (1/2" thick), orings, 70mm bolts with sealing washers for use with an LSA supercharger (please call for other lengths of intake bolts)
  • Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum
Intake manifold bolt lengths required when used with
  1. Car intake manifold (M6 x 130mm) use ICT part # BOLTM6-130X10
  2. Truck intake manifold (M6 x 90mm) use ICT part # BOLTM6-90X10