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1417Re: What did I buy

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  • david brode
    Dec 11, 2004
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      Hi Jerry,

      It's no 472. The 472 rod is 6.75" C/L to C/L, the pin is 1", and the
      C/L of pin to top of pistons is apx 2.010".

      Did you measure bore/stroke? A 472" is 4.3" x 4.06".
      Dave


      Brown" <jerome@p...> wrote:
      > hi Dave,
      > the block and heads are cast iron. I'm pretty satisfied its a 74
      472 with
      > the flat top pistons. Everything else appears to be stock.
      > Jerry Brown
      >

      Brown" <jerome@p...> wrote:
      > >
      > > I recently purchased an engine and transmission for a 36 Chev
      > coupe
      > > I am streetrodding. I am old enough to believe in cubic inches as
      > > effective and FUN. In that spirit I purchased what I was told was
      > a
      > > 1974 472 Cadillac and accompanying 400TH transmission. The price
      > was
      > > so good I considered the transmission a great buy and the engine a
      > > gift. I bought the package to get the transmission as the engine
      > is
      > > a basket case. I'd like to rebuild and use if it has potential. I
      > > know very little about Cadillac big block engines and want to
      > learn
      > > more.
      > >
      > > Here are some codes I found. Can any of the members help me with
      > > proper identification:
      > >
      > > Block stamped in back by sending unit: 49520
      > > Block stamped in front, top: 207
      > >
      > > Heads both stamped: 1602498 on top of head under rocker arm cover
      > >
      > > Crank stamped in three places with the following: N, 319, CFD5Y
      > >
      > > Pistons are flat top, not dished or raised and stamped on top: 2D
      > > they have a notch on the top edge (presumably to align correctly)
      > > Pistons have an R cast in side close to wrist pin hole
      > > Top of piston to ctr of wrist pin hole is apprx 1.795"
      > > Wrist pin hole is apprx .454" dia.
      > >
      > > Rods are stamped with a 25 and a symbol that looks like a
      > small 'w'
      > > with a line over the top and underneath the 'w'. Its pretty faint
      > so
      > > I'm not sure of that identification. I'm loooking at it as though
      > it
      > > is a vertical alignment. If you look at it as horizontal it could
      > be
      > > 131 stamped on the rod. Its so faint its hard to tell.
      > > Rods are approximately 6.875" long from ctr of wrist pin hole to
      > > center of crankshaft hole. Big end of the rods appear to be in OK
      > > condition but no bearings so difficult to tell. No looseness in
      > > wrist pin area.
      > >
      > > Distributor does not have points and appears to be solid state
      > maybe
      > > HEI?
      > >
      > > I'd appreciate any help in identifying this engine and whether its
      > > stock or not. The seller seemed to think the flat top pistons were
      > a
      > > big deal and the engine did not have a cam in it leading me to
      > > consider the possibility it may have been non-factory and pulled
      > to
      > > save for another engine.
      > >
      > > Cylinders have no ridges and hone marks are still visible, pistons
      > > look good with not very much carbon on top. combustion chambers on
      > > heads and valves have considerable carbon but certainly not the
      > > worst build up I've seen. Crank shaft journals are not
      > > spun/gouged/burned and neither are the mains but the bearings are
      > > all gone so its hard to tell what kind of wear it might have had.
      > >
      > > Thanks.
      > > Jerry Brown
      > > Woodland WA
      > > ps. tried to send similar message earlier but don't think it went
      > > through. If this is a duplicate, please excuse.
      >
      >
      >
      >
      >
      >
      >
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