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Any torque gain swapping 68 302 4V heads onto an 89 HO?

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    Any torque gain swapping 68 302 4V heads onto an 89 HO?

    They are newly rebuilt.
    Just wondering if there would be any benefit into swapping them onto the 89 HO?

    Mike
    90 Colony Park LS with GT 40 heads and intake. HO cam, 65 MM TB, 67 MM EGR spacer. Has a 75 MM Pro Flow mass air sensor. Borla XS mufflers. 3L55. Shift kit, 2000 stall Tq convertor...Bilstein shocks, front and rear sway bars.
    90 Colony Park LS 64,000 miles all original. 3L55 tow package....front and rear sway bars.
    91 Grand Marquis GS....HO motor..Bilstein shocks poly bushings and police swaybars. This one handles the best.
    70 Torino Squire with M code 351 Cleveland 3.00 has Magnaflow mufflers. Hidden headlights and power windows. All original

    #2
    Avoid them and buy a pair of TFS 170 or AFR 165cc heads.


    '90 Mercury Grand Marquis GS
    Baseline 5.0L numbers totally stock, 123 rwhp, 239 rwtq
    5.4L swap coming soon.

    Comment


      #3
      There is nothing special about them possibly a bit better than E7s but a dyno or your butt possibly would never feel the differance.
      Scars are tatoos of the fearless

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