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Engine Displacement Weight W L H Oil Starter
Pan
Ford V8 260/289/302 460 24 29 27.5 front right (3)
Ford V8 Boss 302 500 24 29 29 front right (3)
Ford V8 351W
Ford V8 351C 550 24.5 29 28.5 front right (3)
Ford V8 351M/400 575 26 28 28.5 front right (3)
Ford Flathead V8 221/255 450 24 30 26 rear left (3)
Ford Y-block V8 232/272/292 625 28 29 29 front right (3)
312
Ford FE V8 332/352/390 625 27 32 29 front right (3)
406/410/427
428
Ford SOHC Hemi V8 427 680 32 34 30 front right (3)
Ford V8 429/460 720 27 30 29 front right (3)
Ford Boss 429 V8 429 635 28 34 30 front right (3)


The weight difference between a 351W and a 351C is due to the wider Cleveland
heads. Short blocks are very similar. The difference is cut in half when
using aluminum heads. The weight of the FE big block is influenced by the
extra wide and heavy (80 lbs) iron intake manifold. With an aluminum intake,
they a 390 is not that much heavier than a 351C. 427's and 428's are a bit
heavier than 390's due to their beefier blocks (also true for FT truck blocks).

The 4.6L SOHC (iron block and aluminum heads = 600 lbs) and 4.6L DOHC
(aluminum block and heads = 576 pounds) engines are quite heavy for their
displacement due to there massive external size. This visual comparison
illustrates why:

http://www.vorshlag.com/pictures/motor-4.6-4V-004.jpg

The 5.4L engines are larger and heavier still (taller block with longer
stroke crank).

Dan Jones
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