MSD Ignition Pro-Billet Distributor for Chevy V8 [Red Cap]
121-85551
![Pro-Billet Distributor for Chevy V8 [Red Cap] Pro-Billet Distributor for Chevy V8 [Red Cap]](http://www.jegs.com/images/photos/100/121/121-85551.jpg)






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Chevy
This popular MSD distributor is ready for high RPM race track performance. The housing is CNC-machined for exact tolerances from 6061-T6 billet aluminum. A .500" steel shaft is supported by a sealed ball bearing and a long sintered bushing for high rpm stability.
Features:
- Easy-to-adjust mechanical advance with supplied springs and stop bushings
- Mechanical advance assembly can be locked out for crank trigger systems
- Special oil tract improves lubrication to the distributor and cam gear
- O-ring seals can be added to modified blocks to improve oil pressure control
- Supplied with an HEI style distributor cap and rotor (accepts Cap-A-Dapts)
- Will not accept a vacuum advance canister
- Must be used with MSD 6, 7 or 8-Series Ignition
Note: 50-state legal for sale or use on pollution-controlled vehicles (C.A.R.B. EO #D-40-39)
Specifications:
What is the part number for a msd black cap and retainer for this distributor?
Hi which msd distributor will work the best for a chevy V8 454 that will talk happily with a fit tech 30012 1200hp system ? thanks
I am using a comp cam roller cam that requires a melonized iron distributor gear. Is the gear that comes installed on part# 121-85551 msd distributor compatible with my cam?
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