ATK Performance 351W Shortblock

ATK Performance 351W Shortblock

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Part# SP09


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ATK Performance 351W Shortblock

This is a great replacement shortblock to replace your worn out 351W or a great starting point for a naturally aspirated street engine capable of 400+hp. Assembled and ready to bolt on your heads, cam, intake etc. Here's the specs.

  • Block: Seasoned 351W block, non roller
  • Bore/Stroke: 4.040 x 3.000
  • Displacement: 351 C.I.D.
  • Crankshaft: OE Ford Cast 3.500" Stroke 1 Piece Seal Externally Balanced 28oz.
  • Connecting Rods: OE Steel Rod 5.955" w/stock Bolts
  • Pistons: Hypereutectic Flat Top 6.5cc
  • Piston Rings: Moly Rings
  • Compression Ratio: 58cc=9.6:1/64cc=9.1:1
  • Camshaft Bearings: Installed and Clocked to OEM Position
  • Freeze Plugs: Brass Installed and Sealed
  • Oil Galley Plugs: Installed and Sealed


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