Pilot Bushing

 

Bushing, pilot, AMC I6 & V8 cranks (1972-2006) to GM SM420 & SM465 transmissions Part #: PB-3181295 Weight: 0.13 Price: $21.40 Buy: Porous bronze bushing in an aluminum housing. Installs in the crank outer bore. or Bushing, pilot, Early AMC V8 (~1970-1971) to GM SM420 & SM465 transmissions Part #: PB-8401295 Weight: 0.11 Price: $17.60 Buy: Porous bronze material.

Also see:

• Adapting the SM420 to AMC Engines
• Adapting the SM465 to AMC Engines
  

Early AMC Cranks
Not all AMC crank flange bores are the same. Early motors 1971 and previous - as well as those with automatic transmissions around this era - featured a ~1.8" step (image, right) or a shallow recess instead of a ~1.8" centering bore as found on later AMC V8 engines. This distinction is important to make if adapting to GM SM420 and SM465 transmissions. All early and late cranks (in our documentation) feature a pilot bushing bore that is just over 1" in diameter whether they have the above step-bore, or not.