SHP LS Next Short Blocks – 427 Cubic Inches – GEN III – Cast Iron Blocks Professionally built short blocks with brand new premium components. Street performance and Sportsman racing. Simplify engine building and save time with pre-engineered, dyno tested short block combinations from Dart's SHP (Special High Performance) group. These quality component packages are designed to allow the user to build more powerful and durable engines at a very affordable cost. Dart 427 LS Short Block Assembly 03424272 Flat Top Pistons 427 CI Short Block (6CW) Features: LS3/LS7 Compatible Internally Balanced Special High Performance LS NEXT Dart Block 4.125” Bore x 4.000” Stroke Plate Honed Cylinders K1 Forged 4340 Steel Crankshaft (6 Counterweight) K1 Forged 4340 H-Beam Rods – 7/16“ Cap Screws Wiseco -8cc Forged Flat Top or Dish Pistons w/ Full Floating Pin Coated Cam Bearings 58 Tooth Reluctor
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