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XS1400 Engine Long Block

$11,395.00

Our XS1400 Long Block uses an XScream billet power valve cylinder with a custom 88mm crank and 100mm Wiseco pistons. This engine delivers tremendous power.

XS1400 Long Block Includes:

  • XS Custom Exhaust Manifold
  • XS Intake System with Reeds
  • Bedplates
  • Front cover and Stator plate

XS1400 Long Block Features:

  • XScream Freestyle Cylinder Porting
  • Modified Yamaha 66E cases - Includes XScream epoxy and finger port work, CNC matching the case to larger transfer ports on our billet power valve cylinder, and reinforcing and boring the cases to accept an 88mm crankshaft.
  • XScream Custom Sleeves (100mm bore)
  • Wiseco Forged Pistons
  • Custom cut domes
  • 88mm (+20mm) stroker crankshaft with OEM Yamaha bearings
  • OEM Yamaha Crank Seals


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  • Manufactured by: X-Metal



This product was added to our catalog on Friday 06 September, 2013.

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