If you have a slightly taller block or have decked the heads, the distance between the distributor mounting pad and the cam gear/oil pump drive may be different. MSD offers these Distributor with an adjustable slip collar with 1.5" of adjustment so you can be sure the distributor is installed correctly.
The distributor shares the same features of the standard Pro-Billet Chevrolet model including a ball bearing guide, long sintered lower bushing and an oil seal. To trigger the MSD Ignition a maintenance-free magnetic pick-up is secured in the billet base of the distributor. Just above this pick-up assembly is an adjustable mechanical advance assembly.
Features:
- Same features as the PN 85551 Distributor with the addition of an adjustable slip collar for engines with modified deck heights
- Limited 1 Year Warranty
 
Fitment:
 
- 1955-2003 GM V8 Engines (For Taller Blocks Or Decked Heads)
- Must Be Used With An MSD 6, 7 or 8-Series Ignition
 
Included:
 
- MSD Adjustable Slip Collar Distributor
 
Note:
 
- Slip Collar adjustment is .750" from Standard collar height
 
- This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles
- WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
- The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles: 1965 and older U.S. manufactured California Certified vehicles. 1967 and older U.S. manufactured Federally Certified vehicles. 1967 and older Foreign manufactured vehicle
- The following vehicles are considered Emissions Controlled Vehicles: 1966 and newer U.S. manufactured California Certified vehicles. 1968 and newer U.S. manufactured Federally Certified vehicles. 1968 and newer Foreign manufactured vehicle.