Ported 3500 Upper Intake (2004-2006)

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Ported 3500 Upper Intake (2004-2006)

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Product Information

We offer 2 stages of porting for the 3500 upper intake, which depends on the application.  Stage 1 uses the 3400 plenum gasket as a template for use with either a 3400 or 3500 lower intake that is stock, or also Stage 1 ported.  Stage 2 uses the larger 3500 plenum gasket as a template and can only be used on a stage 2 ported 3400 or 3500 lower intake.  We do not gasket match, since gasket manufacturers are not performance companies and did not design their product for optimal flow.  Gasket matching does improve flow over stock, but our shape and size will outperform a gasket matched set of manifolds thanks to the improved airflow we found on the flowbench.

Each version of porting is considered Competition Series due to the lack of runner in the manifold.  The ports are bell shaped inside to reduce turbulence, which is detrimental to performance.

Each upper intake is cleaned, baked, blasted, and inspected for cracks and warpage.

We use paper 3400 upper gaskets or metal 3500 gaskets for our ported upper intake.

Powder Coating is available in many colors.  Please use the additional info field to tell us what color you would like.  If you would like to have other parts coated at the same time, please contact us for more information.  It is difficult to create every option for a single listing.  

Product Code3500UIM

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