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Ford Performance 5.0L 1/2 in. ETI Heat Spacer Factory Intake (86-95 5.0L)

Item 50586
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    Features & Details

    • Reduce Heat Transference
    • Westinghouse Type C Phenolic Material
    • Genuine Ford Racing Part
    • 1/2" Thick
    • Made in the USA
    • Fits 1986 to 1995 5.0L V8 Mustangs w/ Factory Intake Manifold
    Reduce Heat. The Ford Racing Factory Intake Manifold Phenolic Spacer Kit is designed to reduce heat transference between the the upper and lower intake manifold to lower inlet air temperature to increase horsepower and allow for increased timing with less detonation.

    Ford Racing Quality. CNC machined in the USA from Westinghouse Type C phenolic material this 1/2" Intake Manifold Spacer includes longer bolts and gaskets needed for installation.

    Application. This 1/2" Ford Racing Factory Intake Manifold Phenolic Spacer Kit is specifically designed for use on the 1986 to 1995 5.0L Mustang with the factory intake manifold installed.

    Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 Details

    MPN# M-9486-A51

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) 1/2" Phenolic spacer
    • (2) Intake gaskets
    • (2) 6-5/16" bolts
    • (4) 2" bolts
    • (6) Flat Washers
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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          Customer Reviews (11) Write a Review

          Overall Rating 4.7

          out of 5 stars

          Installation Time:Less than 1 Hour

          • Performance Gain 4.333333 4.3
          • Fit 4.777778 4.8

          • 5/5

            October 10, 2019

            Gasket spacer

            Worked really well for what I needed it for great clearance over valve covers l!!!


            Year: 1994 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            July 18, 2019

            Great price and just what I needed

            Getting ready for the rebuild and the spacer is precisely what I need.


            Year: 1989 Submodel: LX

            Helpful (0)

          • 4/5

            Installation Time: Afternoon

            February 19, 2019

            It’s alright but wrong hardware

            It fit well just need different hardware. You could feel a slight performance but not really much .


            Year: 1995 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            November 14, 2018

            composite spacer

            The composite heat spacer work exceptionally well better than I had hoped the upper intake manifold stays the same temperature is the outside air with a definite increase in horsepower


            Year: 1986 Submodel: Other

            Helpful (9)

          • 3/5

            Installation Time: Less than 1 Hour

            October 04, 2018

            For future purchasers

            The spacer fits great gaskets great OEM quality but the hardware is not correct for a 94 or 95 gt intake. Just take your old stock hardware and pick up half inch longer ones at local hardware store. 5/16-18 thread. Other than that it's exactly what I asked for.


            Year: 1994 Submodel: GT

            Helpful (10)

          • 5/5

            Installation Time: Less than 1 Hour

            September 10, 2018

            good product

            Easy to install great product. Love it had all the bolts great material it was made of


            Year: 1994 Submodel: GT

            Helpful (10)

          • 5/5

            Installation Time: Less than 1 Hour

            May 03, 2018

            My Pony

            As advertised! Great upgrade as well as performance.


            Year: 1995 Submodel: GT

            Helpful (15)

          • 5/5

            Installation Time: Less than 1 Hour

            February 10, 2018

            It works

            It does what it says it will do cleared tall calve covers and cooler but bolts that come with it are garbage


            Year: 1988 Submodel: LX

            Helpful (14)

          • 5/5

            Installation Time: Less than 1 Hour

            April 12, 2017

            Life saver

            I searched high and low locally for a solution to my high valve covers. I'm building a 5.0 from the ground up and it took forever to find this thing. The hardware is a little funky but that's something for ford racing to remedy other than grabbing hardware from the local aces this is a great buy!!!


            Year: 1998 Submodel: Other

            Helpful (15)

          • 5/5

            Installation Time: Less than 1 Hour

            March 26, 2017

            FP is da bomb

            I trust anything from Ford Performance! With that said, I put this on my '92 fox 'vert w/ stock intake. First: the item is high quality. I mean it, she's beautiful and the two gaskets are top-notch. Second: Fit was perfect...hole sizes, external trim. Third: Gains...notable improvement at idle and take off. I like the grumble that came with the installation. Fourth: Install was a breeze. The biggest pain was two of the four screws holding the intake plaque striped and i had to easy out them after a trip to Lowes. Fifth: i have my EGR and smog system installed. The BBK spacer does not have the hole for my EGR...wasn't going to tear into a newly purchased item!! This FP one has the hole. Last: No clearance issues. Again, stock intake manifold/stock hood on my 5.0. Not even a mark on the hood's interior liner. In all, I'm very satisfied and recommend to anyone. Now to figure out new timing or tune............


            Year: 1992 Submodel: GT

            Helpful (17)

          • 5/5

            September 04, 2016

            Great purchase!

            Noticeably different temperatures to the touch on the upper intake. And gives you some more clearence.


            Year: 1995 Submodel: GT

            Helpful (18)

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