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Mark Viii heads/intake swap on my NPI shortblock...why not??

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    #16
    Nobody's addressed the fact that this would drastically lower the already low compression ratio, that's why 2V heads make 12:1 on a 4V bottom end.
    1992 CVLX. 5.0 HO/GT40P/T5/3.73/trak-lok with bolt ons. 02 front CVPI setup, rear HPP setup, CVPI shocks around, F250 radiator, e-fans, and the power of 3G. 15.92@89mph, 2.4 60', 4700' elevation (5500' DA) with 3.08 open rear and the old oil chugging 289. RIP.

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      #17
      Originally posted by v8only View Post
      i'm not set on a 4v swap. for now I'm going to try the PI swap. I also read that swapping the 4v heads on a 2v pre 99 engine will result in 8.5 to 1 compression..not good unless I run a blower...

      just continuing the discussion, anyone know about the 05+ 3v motors?
      True...

      -ryan s.
      08 Lincoln Navigator L - 233k
      03 Mercury Marauder- 63k
      97 Ford Crown Victoria HPP "Tank of Justice III" (TOJ3) - 194k -->578.9 miles on ONE tank of gas<--
      94 BMW 325i Convertible - 135k
      73 VW Super Beetle "Bunky" <----- Wifey's
      12 Mini Cooper S - 90k <---- Wifey's
      Originally posted by pantera77
      Well my buddy tells him he knows exactly who loves buying shitboxes.

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        #18
        I stand corrected and apparently can't read. 8.5:1 isn't as horrible as what I was thinking.
        1992 CVLX. 5.0 HO/GT40P/T5/3.73/trak-lok with bolt ons. 02 front CVPI setup, rear HPP setup, CVPI shocks around, F250 radiator, e-fans, and the power of 3G. 15.92@89mph, 2.4 60', 4700' elevation (5500' DA) with 3.08 open rear and the old oil chugging 289. RIP.

        Comment


          #19
          No. But it's prime for a blower or forced induction of some kind. I would run too much boost without some internal upgrades.

          -ryan s.
          08 Lincoln Navigator L - 233k
          03 Mercury Marauder- 63k
          97 Ford Crown Victoria HPP "Tank of Justice III" (TOJ3) - 194k -->578.9 miles on ONE tank of gas<--
          94 BMW 325i Convertible - 135k
          73 VW Super Beetle "Bunky" <----- Wifey's
          12 Mini Cooper S - 90k <---- Wifey's
          Originally posted by pantera77
          Well my buddy tells him he knows exactly who loves buying shitboxes.

          Comment

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