Want to build a Gasser Nailhead, some questions

Discussion in ''Da Nailhead' started by 2TONSTAGE1, Feb 24, 2007.

  1. william.ali.kay

    william.ali.kay Needs more cowbell!

    Single carb 425 was reported to produce 340hp and the dual carb was reported to produce 360hp. :3gears:
    Factory dual carb 425s are called a Super Wildcat.

    DISCLAIMER - Im not a performance guy. :)
     
  2. doc

    doc Well-Known Member

    A 63 skylark body would make a good gasser....
     
  3. mikethegoon

    mikethegoon Well-Known Member

    Need some nailhead info please/ not for me but co-worker. My knowledge as far as performance was that larger valve cannot be installed on nailhead.? Can u or not?
     
  4. Babeola

    Babeola Well-Known Member

    You can. One set of heads here have 1.94” intakes (1.87” stock). They needed to be unshrouded for any decent CFM gain - Especially at higher lifts.
     
  5. mikethegoon

    mikethegoon Well-Known Member

    I cut some finned drums for a customer / he said he had a 66 riv. 425 that had been sitting for 25 years. Out of the 4 drums only one was warped - he other 3 cleaned up with minimal cut. But he said he was soaking. The motor.
     
  6. 56buickboy

    56buickboy Well-Known Member

    Some Inspiration from Google.

    55 Gaser.png 56 Gasser.png
     
    wkillgs likes this.
  7. GKMoz

    GKMoz Gary / Moz

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