Adapter Kit – GM LS Engines to SM465 / SM420 4-Speed

Adapter Kit – GM LS Engines to SM465 / SM420 4-Speed


Chevy LS to SM465  and SM420 bellhousing kit

Uses Factory Chevy flywheel and clutch parts

Factory Jeep Slave cylinder

Made in the USA


Looking for a viable manual transmission to put behind a Chevy LS V8?  This Quick Draw Brand Adapter Kit provides a simple solution for bolting any engine from the GM LS family to a GM SM465 for SM420 4 -speed. Further, our adapter is designed to use mostly off-the-shelf wear parts that can be sourced at any auto parts store. Our GM LS to SM465 Adapter Kit utilizes a 2006 Chevy Silverado 6.0 flywheel, starter, and clutch kit.  On top of that, we designed our bellhousing adapter to use a 1999 Jeep Wrangler external slave cylinder, which resolves the clearance issues that other adapter kits on the market don’t address and can be challenging to overcome.

Our GM LS engine to SM465 / SM420 adapter kit works with all GM LS engines, including the 4.8L, 5.3L, 6.0L and 6.2L. Further, it works with 4-speed transmissions that were used in GM 1 ton trucks from mid 80’s.

Kit Includes:

  • Bulletproof Quick Draw Chevy LS to GM SM465 or GM SM420 bellhousing
  • Lifetime use throwout bearing carrier that accepts the factory LS throw out bearing
  • Pilot bearing insert to use a Jeep pilot bearing in the LS flywheel
  • New clutch fork, fork spring retainer, and pivot ball
  • All hardware to attach the bellhousing to the engine and transmission
  • Dust cover with bolts
  • External Slave cylinder bolts
  • Index ring


Additional information

Weight55 lbs
Dimensions18 × 18 × 7 in
Transmission Type

SM465, SM420


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