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Big block piston ID

Discussion in 'The Garage' started by Zeus33rd, Jul 13, 2003.

  1. Zeus33rd

    Zeus33rd Smarter than you GMOTM Winner

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    Just dissasembled my big block to the bare block in prep for the trip to the machine shop for hot tank, hone/bore etc etc...And I'm curious about these pistons, Whoever built the engine before I got it, did it right for the most part, Melling hi-volumn oil pump, Comp Cams cam etc...so figured maybe the pistons were something other than stock. I'm pretty much engine stoopid, so I'm askin ya'all engine dudes...Cast, forged, hyprur..ecti..ledysfunction? /forums/images/graemlins/thumb.gif


    [​IMG]
    [​IMG]

    Bare block..
    [​IMG]
     
  2. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Joe, as I said at the NCBD's site, It is too hard to see what the part number is on that piston but it looks like 909 P, Ohio and badger both use a number with a (P) in it. One company puts the (P) before the number and the other after the number, can't remember which does what. Those are just a normal old cast piston and look to be a stock replacement piston for a BBC.
     
  3. m j

    m j 1/2 ton status

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    I agree cast,
    but as to whether they are hypo hyer what ever i dunno never seen them
     
  4. Zeus33rd

    Zeus33rd Smarter than you GMOTM Winner

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    Thanks Scott. /forums/images/graemlins/smile.gif
     

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