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