FastTimes 388" short block assembly based on the Dart LSNext SHP cast iron block. These come standard with a forged steel 4.000" crank, 6.125" forged h-beam rods, 4.125" forged dish pistons with upgraded pins, gas nitrided steel rings and King main and rod bearings.  The Dart SHP block is substantially stronger than factory GM castings with a greatly improved oiling system identical to that in Pro Stock engines.  Splayed 4-bolt billet main caps are the same as those in the Iron Eagle and Little M blocks and are much stronger than the GM design! 

Perfect for LS swap projects, weekend hot rods, or even daily drivers, this short block will provide you with a solid foundation to start with to hold all the power you need, reliably!

Select your brand of crank, rods, and pistons to accommodate your project or custom builds are also available. 

Base Short Block Components:

  • Dart LSNext SHP cast iron block with block kit (freeze plugs, coated cam bearings, head dowels)
  • King main & rod bearings, Dart coated cam bearings
  • Scat 4340 Standard weight crankshaft
  • Scat H-beam connecting rods w/ ARP2000 bolts
  • Wiseco forged pistons

Machining & Assembly Processes:

  • Line honed
  • Block zero/square decked
  • Bored & deck plate honed to size
  • Crank internally balanced and micro-polished
  • Rods and pistons pin fit and clearance checked
  • Cam bearings, oil galley plugs & freeze plugs installed
  • Professionally assembled.

If we are shipping your short block you are required to purchase a shipping cradle and crate. This is to ensure that your short block assembly arrives safely. We will not ship without the cradle and shipping container!

Does not come with timing chain, cam, or cam bolts.

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