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Piston Set - What are they for???
  • dumsterfire
    Posts: 2Hitchhiker
    Hello,

    I have a set of new pistons for a V8 engine but have no idea what motor they are for.

    They are McQuay Norris Aluminum Pistons, part number P-600AX, +.030, set of 8 still in the box.

    If you have any idea what this part number fits please let me know! Thanks!
  • Oldcar_MechanicOldcar_Mechanic
    Posts: 1,786Platinum Member
    Don't feel to bad. There is a guy on the AACA frum and one on the HAMB that have the same problem. No one seems to know were there may be a catalog for these to find out what fits wha.



    Have you researched the name to see if there is someone to call?



    Ron
  • dumsterfire
    Posts: 2Hitchhiker
    Well I've been researching and looking for catalogs with no luck, but today was digging through more of my junk in the shed and found a list of a bunch of pistons and their specs, although it doesn't list what they fit. Here are the specs for these pistons:

    3-3/4 Diameter (plus the +.030), .001&1/2 min skirt top clearance, .000&1/2 min skirt bottom clearance, min land clearance .026, pin fitting is a slide fit in both bosses with pin and bosses dry (for use if rod is bushed). There is also a diagram explaining the skirt contours but can't really explain it.

    If these specs tell you anything on what they can be I'd be happy to know. I will try scanning the 2 page list of pistons and their specs plus the diagrams and posting them on here for everyone to be able to reference.
  • fst64_v8pwr
    Posts: 41Senior Contributor
    thanks for the good info!