Quote:
Originally posted by 84LX89GT
This is what i've read:
Windsor engines, 302-351 windsor. made in windsor canada, 351W has a taller deck height than the 302, both are 4.00" bore, 302 has 3.0" stroke, 351 has 3.5" stroke.
the 302 has 2.25" main journals while the 351 has 3" main journals. bore spacing is the same.
W is Windsor
C is Cleveland
M is Modified Cleveland
351C, 351M, and 400M all have the same bore spacing as the windsor blocks (4.38"). the 351M engine has 2.988" main journal diameter while the 351 has 2.749 main diameter. the deck height of the "M' engines is taller than the 351C engine.
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There is no such thing as a 302 Windsor. The only small block pushrod V8 that was made at the Windsor plant was the 351W. The 302's were built at the Cleveland plant. The confusion comes because the design of the 351W was similar to the 302"C".
The 351M is nothing more than a 400C that has been modified to accept a 351W crank. When the Cleveland plant stopped producing the 351C, there was too much demand for that size engine for the Windsor plant to handle, so they created the 351M to make up the difference.
Take care,
~Chris