MSD 8464 Bushing & Spring Set for Billet & Pro‑Billet Distributors — Shaft Bushings & Advance Springs

A compact replacement bushing and spring kit engineered to restore smooth shaft rotation and reliable mechanical advance in MSD billet and Pro‑billet distributors.

When a distributor shows play, rough rotation, or inconsistent advance, replacing worn internal bushings and springs often brings the assembly back to factory-like performance. The MSD 8464 Bushing & Spring Set contains the internal wear components designed specifically for MSD billet and Pro‑billet distributors, allowing you to repair rather than replace the entire distributor housing. This reduces service cost while preserving precision timing and long-term durability.

What does the MSD 8464 kit replace inside the distributor?

The kit supplies the internal bushings and springs that support the distributor shaft and control the mechanical advance. Replacing these parts removes shaft end-play and ensures the advance weights return consistently.

• Upper and lower bushings for shaft alignment
• Advance return springs that control mechanical timing
• All components sized for MSD billet and Pro‑billet housings

How do these parts improve distributor performance?

Fresh bushings reduce friction and wobble, improving rotor sweep and reducing timing variation under load. New springs restore designed advance rates so timing responds predictably with engine speed.

• Reduces shaft play for consistent spark delivery
• Improves mechanical advance repeatability at varying RPMs
• Minimizes wear on the distributor shaft and gear surfaces

Are these components compatible with my MSD distributor?

The MSD 8464 kit is made to fit all MSD billet and Pro‑billet distributor models. It’s not intended for non‑MSD housings or older stamped distributors without billet-style internals.

• Fits MSD billet and Pro‑billet distributor families
• Direct drop‑in fit—no modification required for supported models
• Verify compatibility with your MSD distributor model before ordering

What tools and skills are needed to install the kit?

Installation requires basic mechanical tools and a careful approach—pressing bushings and seating springs correctly is important to avoid damage. A bench vise, soft jaws or a bushing driver, and basic hand tools are typically sufficient.

• Common hand tools, bench vise or bushing driver recommended
• Mechanical experience with distributor disassembly helpful
• Follow MSD installation steps or consult a technician if unsure

Who is this for: The MSD 8464 Bushing & Spring Set is aimed at vehicle owners, mechanics, and restoration specialists who already use MSD billet or Pro‑billet distributors and want a reliable repair option. It’s ideal if you’re rebuilding a distributor to eliminate shaft looseness, restore smooth advance action, or maintain precise ignition timing without replacing the entire unit. If you prefer buying original‑equipment replacement parts made specifically for MSD distributors, this kit provides a direct, serviceable solution.