2 - 1.5" Self Tapping Screws

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

1 - Advance Kit

1 - Gasket/O-Ring Seal

1 - Tube of Gear Lubricant

2 - O-Rings (Chevy Only)

1 - Gray Tach Jumper

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

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

MSD Ready-to-Run Marine V8 Distributor

Chevrolet, PN 83606, Ford 351C-460, PN 83506

Parts Included:

1 - Pro-Billet Distributor

1 - Rotor, PN 8467

1 - Distributor Cap

Chevy, Olds, PN 8565

Ford, PN 8431

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.

Note: If the Chevy gear is ever replaced, MSD Gear, PN 8561, is required for replacement due to the

.500" diameter shaft.

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.

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. RPM LIMIT AND Tachometer Information

Tach Signal: The Ready-to-Run Distributor features a Gray Tach Output wire which provides a clean signal

for most tachometers and even some aftermarket fuel injection systems. The signal output

is a 12 volt square wave, 20° duty cycle. This wire is also responsible for programming the

built-in rev limiter.

Rev Limiter: The Ready-to-Run Distributor has a built-in rev limit that can easily be adjusted from 2,000

rpm to over 10,000 rpm. The default is 10,000 rpm. To set the rev limiter, run the engine to half

the desired rpm then ground the Gray Tach wire (a jumper is supplied) for approximately one

second. Every time the key is turned to the On position, the tach will display the programmed

rpm limit. See page 8 for the programming procedure.

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.