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Thread: FFR Headers hitting stock A/C Compressor on 4.6L SOHC

  1. #1
    Junior Member
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    Question FFR Headers hitting stock A/C Compressor on 4.6L SOHC

    I plan on running A/C in my MK4. The engine is a 2001 4.6L 2V out of a Mustang GT. The FFR headers hit the back of the stock A/C compressor. As it bolts directly to the block, I'm not sure of a solution to this problem. Is there another compressor that will bolt into the stock location that is shorter? Is there a mount that locates the compressor down below the header.

    Any help would be greatly appreciated.
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  2. #2
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    Fitment solved

    I have found that the Ford FS20 compressor found on Explorers will fit with a slight dimpling of the header to clear the back of the compressor. The mounting is the same, but the S/D ports are located at the middle of the compressor. I used the Four Seasons 68187 A/C Compressor, with Ford DKS-17DS, FS18, FS20 Suction and Discharge Block Fittings - Part #3-92876-3-93347
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  3. #3
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    Heart of Dixie, Alabama
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    Good find. I would look for a heat shield blanket for the compressor. I will bet that compressor will not like the constant heat from the header tube.
    20th Anniversary Mk IV, A50XS Coyote, TKO 600, Trunk Drop Box, Trunk Battery Box, Cubby Hole, Seat Heaters, Radiator hanger and shroud.

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