MSD Pro-Billet Small Diameter

Ford V8 Distributor

PN 8577/85773; 351C-460, PN 8578/85783; 351W

PN 8579/85793; 302

WARNING: Before installing the MSD Distributor, disconnect the battery cables. When discon-

necting the battery cables, always remove the Negative (-) cable first and install it

last.

1 - O-Ring Seal

1 - Tube of Gear Lubricant

1 - Parts Bag

Parts Included:

1 - Pro-Billet Distributor

1 - Rotor, PN 8467

1 - Distributor Cap, Red PN 8431 or Black PN 84313

1 - Advance Kit

Note: The terminals of this Distributor require spark plug style terminals. You may need to change

the terminals and boots of your wires. MSD offers two kits, PN 8849 or PN 8848 that are supplied

with nine boots and terminals.

TIMING FUNCTIONS

Before continuing with the installation, here are a few definitions you should be aware of:

Initial Timing: This is the base timing (also referred to as idle timing) of the engine before the

centrifugal advance begins.

Centrifugal Advance: The centrifugal (or mechanical) advance mechanism is made up of weights,

springs, advance cams, and an advance stop bushing. The amount and rate of advance that your

distributor is capable of is determined by the centrifugal timing. If you ever wish to lock out the

centrifugal advance, refer to the centrifugal advance section.

Total Timing: This is the total of the initial timing plus the centrifugal advance added together.

Example: 10° Initial + 25° centrifugal = 35° Total Timing. (When checking Total timing, disconnect

the vacuum canister and plug the vacuum source.)

Note: MSD Distributors are supplied with the heavy (slow) advance springs installed. This is to prevent

detonation in certain applications. Review the information on pages 2-4 to determine the best

advance curve for your application.

ONLINE PRODUCT REGISTRATION: Register your MSD product online. Registering your product

will help if there is ever a warranty issue with your product and helps the MSD R&D team create

new products that you ask for! Go to www.msdperformance.com/registration.