Until Dart released their 4.000" stroke CCW LS crankshaft, the only answer to this question was a custom made crankshaft that could cost well over $3000.
Designed to complement their SHP line of engine blocks, this CCW offers increased strength and reliability when building a high hp, forced induction LS engine. Offered in one stroke only, 4.000" and cam'd for a 6.125 connecting rod this crankshaft is an excellent choice vs a custom billet piece from Windberg or Sonny Bryant.
GEN III / IV Fully Counterweighted Crankshaft
• 4340 Billet
• 4.000” stroke
• 8 counterweights (Fully counterweighted)
• Heavy duty rod cheeks
• LS1/LS6 short snout
• Rough balanced at 1780 grams
*NOTE FITS ONLY DART SHP BLOCKS. OE BLOCKS REQUIRE CUSTOM MACHINE WORK TO ACCEPT THIS CRANKSHAFT