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MSD 8363 Cadillac V8 Distributor w_Vacuum Advance Installation User Manual

Msd pro-billet distributor

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M S D  

•   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

Important:

  Read these instructions before attempting the installation.

Parts Included:

1 - Pro-Billet Distributor

1 - Rotor, PN 8467

1 - Distributor Cap

V8 - PN 8433

I6 - PN 8014

1 - Wire Retainer

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).

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. 

2 - 1.5" Self Tapping Screws

2 - 10-32 x 3/4" Socket Head Screws

1 -  Advance Kit

1 - Gasket

1 - Tube of Gear Lubricant

1 - Vacuum Advance Lockout Kit

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.

MSD Pro-Billet Distributor

Cadillac V8 (368, 425, 472, 500), PN 8363

AMC V8, PN 8519

Jeep Inline-6, PN 8516

Chevrolet Inline-6 (194, 230, 250, 292), PN 8515

ONLINE PRODUCT REGISTRATION: Register your MSD product online and you’ll be entered

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.