LS Swap TH350 TH400 Converter Hub to LS1 Flexplate Crankshaft Adapter

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  • Regular price $49.95
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LS/LT Crankshaft Hub adapter for Torque Converter.


  • Adapts Powerglide, TH400, 4L80E, TH350, 2004R, 700R4, 4L60, 4L60E (from Non LS engine) torque converter snout to LS/LT
  • See our LS/LT Crankshaft and Flexplate guide to determine where to place your crankshaft hub adapter
  • Made in Wichita, Kansas from USA produced steel
  • Compatible with all LS and LT series engines Gen 3, 4, 5 (except 99-00' 6.0L does not require this.)
  • Includes: 1 adapter ring (inserts into rear of crankshaft)
    ***if installing a 6.0L engine from a 1999 or 2000 model then this part is not required.   All other engines and years must use a crank adapter for any transmission that did not come factory behind an LS engine.  Also a flex plate will be required due to the bolt pattern being different (use 551356, 551346, or re-drill your flex plate for the correct torque converter pattern)