MSD Soft Touch Rev Control 8728 2001-chevrolet-c3500hd-esi6832231 Is this a main bearing

Is this a main bearing set or a rod bearing set

This kit includes 4 bolts

00 Intake Pipe Inlet Width 4

Ideal replacement for the failure-prone stock radiator

this component box supplies strut and support tubing only

MSD Soft Touch Rev Control 8728 2001-chevrolet-c3500hd-esi6832231 Is this a main bearingThe PN 8728 can be installed on engines with a GM HEI Ignition, Ford or Chrysler electronic ignition, any standard breaker points systems or even with an MSD 5 or Blaster Ignition (non CD ignitions). The Soft Touch Rev Control is adjusted with plug in modules and is supplied with 6,000, 7,000 and 8,000 rpm modules. When the engine reaches your set rpm, the Soft Touch circuitry kicks in and drops the spark to certain cylinders. This limiter produces