The Carbon HR Intake Manifold Lid offers owners of the Holley Hi-Ram intake, a lightweight carbon fiber plenum upper to reduce weight, reduce heat soak and add a unique engine aesthetic with exposed weave cloth. Constructed from high strength carbon fiber with high temp epoxy, bonded with high temp aerospace structural adhesive this part saves approximately 3 lbs of mass vs. the cast original lid.
With a matching plenum bolt pattern, this carbon plenum upper will bolt to any existing Holley Hi-Ram, Mid-Ram or Lo-Ram cast lowers (excluding Coyote). The throttle is move up and rearward to improve the flow transition into the plenum and facilitate the carbon process.
All billet components machined in Southeast Michigan are combined with carbon molding and hand assembly in Auburn Hills, Michigan. Available to install on any Holley Hi-Ram, or Mid-Ram intake manifold.
Specifications
Carbon fiber plenum upper using high temperature epoxy matrix
Billet 90-105mm throttle body flange
Carbon fiber-wrapped foam core plenum flange
Fully bonded with high temp aerospace structural adhesive
Plenum can be reversed on the Hi-Ram lower
*Holley base not included.
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Carbon fiber exposed to UV will exhibit some resin yellowing over time. While our experience has been that in most cases the changes over time has been less than expected, in some cases with more exposure this is accelerated. If your application will be
