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Thread: Grand Marq from the Czech Republic

  1. #21
    Join Date
    Aug 2018
    Czech Rep


    If I decide to use BBK shorty headers - these: https://www.summitracing.com/int/par...ions/year/1987, is there any issue with space between the engine and front axle/frame or they will fit?

  2. #22
    I post a lot... turbo2256b's Avatar
    Join Date
    Apr 2006


    The ones that come closest are the equal length shorties, they come close to the steering shaft.
    Scars are tatoos of the fearless

  3. #23
    I post a lot...
    Join Date
    Nov 2005


    I am running stock Mustang headers on the '91 and UNequal length BBK'S on the '87. They were installed years ago. I do not recall any issues with either install.

    The 91 is a mostly stock HO, the stock 1 1/2" headers are well matched for low RPM.

    The 87 is highly modified, I think you would lose low end torque with 1 5/8" pipes on a basically stock HO. So be realistic in what you are assembling.

    Keep in mind that a system that is well matched will perform better than a bunch of "trick" parts that are just thrown together.

    87 Ford LTD Crown Victoria Country Squire Station Wagon. 4.10's, Repacked Trac Loc, Boxed LCA's, Explorer Intake, 65mm T-body, 'Stang Cam, 'Stang Air tube, K&N, GT-40X Heads, 1" Spacer, 1 5/8 BBK's, 2.5" Pypes X-pipe w/high flow cats, Single Chamber Thunderbolts, B&M 'vertor, Po-lice Swaybars, Dead AOD.....
    '91 Mercury Grand Marquis Colony Park Station Wagon. K-Code, 4.10's, Repacked Trac Loc, MK VII LSC Engine, 'Stang Upper Intake, 'Stang Air Tube, K&N, 65 mm T-Body, 'Stang Headers, 'Stang Cat Pipe,'Stang Torque Convertor, 2 Chamber Thunderbolts...

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