






LS Cathedral Port Cylinder Head to Rectangle Port Intake Manifold Adapters
Cathedral Port Cylinder Head to Rectangle Port Intake Adapter
*** 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 (bolt lengths for other intakes listed below)
- Made in Wichita, Kansas from 6061-T6 USA produced billet aluminum
Intake manifold bolt lengths required when used with
- Car intake manifold (M6 x 130mm) use Bolt Kit
- Truck intake manifold (M6 x 90mm) use Bolt Kit
See our other listing for reverse adapters
Helpful Links
- Replacement -233 oring
Original: $239.99
-65%$239.99
$84.00Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Cathedral Port Cylinder Head to Rectangle Port Intake Adapter
*** 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 (bolt lengths for other intakes listed below)
- Made in Wichita, Kansas from 6061-T6 USA produced billet aluminum
Intake manifold bolt lengths required when used with
- Car intake manifold (M6 x 130mm) use Bolt Kit
- Truck intake manifold (M6 x 90mm) use Bolt Kit
See our other listing for reverse adapters
Helpful Links
- Replacement -233 oring

















