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MSD 8383 Ford Y Block Ready-to-Run Distributor Installation User Manual

Msd pro-billet ready to run distributor

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•   W W W . M S D P E R F O R M A N C E . C O M   •   ( 9 1 5 )   8 5 7 - 5 2 0 0   •   F A X   ( 9 1 5 )   8 5 7 - 3 3 4 4

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in our monthly 8.5mm Super Conductor Spark Plug Wire give-away! 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.

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

ing the battery cables, always remove the Negative (-) cable first and install it last.

MSD Pro-Billet Ready to Run Distributor

Ford Y-Block, PN 8383

Ford FE, PN 8595

Important:

Read these instructions before attempting the installation.

Parts Included:

1 - Pro-Billet Distributor

1 - Rotor, PN 8467

1 - Distributor Cap, PN 8431

1 - Wire Retainer

2 - 1.5" Self Tapping Screws

2 - 10-32 x 3/4" Socket Head Screws

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 and cap the

vacuum canister and plug the vacuum line.)

Vacuum Advance: The vacuum advance will advance the timing up to 10° during partial throttle

driving (with 15 lbs of vacuum). The vacuum line should be routed to a ported vacuum outlet above

the throttle plates.

Note: MSD Distributors are supplied with the heavy (slow) advance springs and the 21° stop bushing

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.

1 - Advance Kit

1 - Gasket/O-Ring

1 - Tube of Gear Lubricant

1 - Vacuum Advance Lock-Out Kit

1 - 3-Pin Harness

1 - Gray Tach Jumper

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