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ICT Billet 551317 - LS Rectangle Port Cylinder Head to Cathedral Intake Adapters

Rectangle Port Cylinder Head toCathedral Port Intake

Can ONLY be used with LS rectangle port cylinder heads
Will not fit raised port LS7 cylinder heads

Compatible with ANY rectangle port head and bolts to ANYcathedral port intake manifold, supercharger or blower
Package Includes: 2 adapter plates (1/2" thick) with 8 O-ring seals
Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum

Intake manifold bolt lengths required when used with

Factory GM LSA supercharger(M6 x 70mm) use ICT part # 551400
Car intake manifold(M6 x 130mm) use ICT part # BOLTM6-130X10
Truck intake manifold(M6 x 90mm) use ICT part #BOLTM6-90X10

See our other listing for reverse adapters
Pricing: $195.99
Free U.S. Continental Shipping

California Proposition 65

California Prop 65WARNING: Cancer & Reproductive Harm -


  • 551317
  • 551317
  • 656729843178
  • ICT Billet
  • New

Shipping Information

  • Item Requires Shipping
  • 3.2 lbs.
  • W17.0000” x H1.0000” x L4.0000”
  • Free U.S. Continental Shipping

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