Base Plates

Our Base Plates provide the connection between our ITBs and some of most common carburetor-style intake manifolds.   They are available in clear anodized (as pictured below) or polished aluminum (for an extra fee).

We currently offer Base Plates for SU carburetor conversions as well as the 3 most common Weber® applications.  Because the design of our Base Plate is flat, you can have your own custom Base Plate made or make your own for a fraction of the time, effort, and cost of a custom intake manifold.

 

Features Common to All Our Base Plates:

  • 9.5mm, CNC machined aluminum (6061-T6) for strength
  • Recessed ITB mounting holes
  • Nitrile-rubber Composite gaskets and Stainless Steel Sockethead  included for a solid, leak-free ITB to Base Plate connection
  • Made in the USA
  • Dimensional drawings available here
  • Pricing and availability at our Online Store

Weber®-Style DCOE and IDF Base Plates:

  • This Base Plate design is pre-drilled for both DCOE and IDF-style mounting locations4 DCOE mounting holes are threaded (1/4 x 20 threads)
  • Choose 40, 45, and 50mm bore sizes
  • 90mm Bore Spacing
  • These Base Plates may be customized and used in other applications that have similar bore spacing (such as Nissan RB26DETT which shares a 90mm spacing)
  • 2 Nitrile Composite Gaskets and 8 Stainless Steel Sockethead bolts are included to mount base plate to 2 ITBs (Note: Gasket for Intake Manifold to Base Plate interface is not included)

Weber®-Style IDA Base Plates:

  • This Base Plate design is pre-drilled for IDA mounting locations, common to V8 applications (Ford, Chevy, GM, Chrysler)

  • Choose 40, 45, and 50mm bore sizes
  • 120mm Bore Spacing
  • 2 Nitrile Composite Gaskets and 8 Stainless Steel Sockethead bolts are included to mount base plate to 2 ITBs (Note: Gasket for Intake Manifold to Base Plate interface is not included)

SU Base Plates:

  • This Base Plate design is pre-drilled for SU mounting locations, common to British marquees (MG, Triumph, Austin Healey, etc.).  It can also be modified for custom installations
  • Choose 40, 45, and 50mm bore sizes (approx 1.5", 1.75", and 2")
  • 2 Nitrile Composite Gaskets and 8 Stainless Steel Sockethead bolts are included to mount base plate to 2 ITBs (Note: Gasket for Intake Manifold to Base Plate interface is not included)
  • Dimensional drawings available here

Su Base Plate

Weld Pates - 4 Cylinder or v8 Applications - 90mm Bore Spacing:

  • Weld plates are used to create custom ITB manifolds
  • 9.5mm, CNC machined aluminum (6061-T6) for strength
  • Made in the USA

Weld Plate

  • Example weld-plate use on GM Ecotec engine:

ECOTEC Intake Manifold

 

2007 © Copyright Extrudabody, LLC.  All rights reserved.

Products and services described on this site may not be available for residents of certain countries.

Important Legal Information: Please read the Disclaimer and Confidentiality sections.