Plastic intake manifold???
Man, it's going to have to get well over 400 degrees F to melt that. It's not an ABS plastic, more of a composite, I'm sure H-D knows the melting point of whatever the material choice is and picked something well within tolerance. If the motor gets hot enough that the manifold melts, there's a much greater problem happening.
Seasoned HDF Member
Joined: Jun 2006
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From: Vermont
Yup, just swap out with the SE 55mm (stock is 55mm) if it makes one feel better. I suppose if in an overheat situation it would be peace of mind to not have to worry about warpage.
Im surprised H-D hasnt called the primary vent an SE upgrade yet!
Im surprised H-D hasnt called the primary vent an SE upgrade yet!
Last edited by dawg; Apr 30, 2020 at 11:38 AM.
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Road Master
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SMH not going to happen. Composite intakes have been on cars and trucks since the 90s. We just arrived to the 20th Century.
Road Captain
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Sometimes Harley has a long learning curve in areas where other companies adapt and succeed more quickly. Unfortunately we have seen HD struggle with longer learning curves in other areas. Hopefully the manifold is not one of these areas.