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cam lift.

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    cam lift.

    Whats the most lift i can get on a cam on the stock lo po block and heads. i wanna swap mine out for 351 cam so it sounds better but i dont want to go too big and smack the piston.
    1989 Grand Marquis LS
    flat black, 650 double pumper, random cam, hei, stealth intake, Police front springs, Wagon rear, Police rear bar, wagon front ,exploder wheels, 205/60-15 fronts 275/60-15 rears, 1 5/8" headers, 2.5" offroad x pipe, Eclipse front bucket seats, Custom floor shifter, 4.10 gears, aluminum driveshaft and daily driven. 16.77@83mph

    most 351 cams are not as aggressive as 302 cams

    R.I.P. Jason P Harrill 6-12-06


      Don't go any bigger than a stock HO cam


        the rule of thumb is .500", anything more and you will run into problems.

        Several guys on T-bird/Cougar sites are running the E-cam (.498" lift) with non-HO pistons and havent had any piston/valve contact issues.

        like Mercracer said, the HO cam is your safest bet, you can add 1.7 rocker arms and increase the stock lift from .444" to .474"
        2003 Town Car Signature - 3.27 RAR, Dual exhaust and J-mod - SOLD 9/2011
        89 Crown Victoria LX HPP -- SOLD 9/2010
        88 Grand Marquis LS - The Original -- Totaled 5/2006

        I rebuild AOD/AODE/4R70W/4R75E transmissions....Check out my Facebook page: