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In-Store Pickup Location

1984 FORD F 350 MSD Pro-Billet Distributors 85840

Make sure this fits your vehicle:
1984 FORD F 350

Distributor, Pro-Billet, Magnetic Trigger, Mechanical Advance, Ford, 351W, Each

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  • Order this item and get free delivery and handling on your entire order! Offer excludes truck freight and oversize fees. Valid on orders shipped in the contiguous United States.

Hazardous Material Warning
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WARNING: Cancer and Reproductive Harm For more information, visit www.P65warnings.ca.gov.

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Brand: MSD Ignition

Manufacturer's Part Number: 85840

Part Type: Distributors

Product Line: MSD Pro-Billet Distributors

Summit Racing Part Number: MSD-85840

UPC: 085132858408

Computer-Controlled Compatible: No

Trigger Style: Magnetic

Advance Type: Mechanical

Ignition Box Required: Yes

Cap Style: Male/HEI

Mechanical Tach Drive: No

Slip Collar: No

Distributor Gear Material: Steel

Distributor Gear Rotation: Standard

Distributor Cap Color: Red

Housing Material: Billet aluminum

Housing Finish: Natural

Marine Use: No

Quantity: Sold individually.

Notes: Distributor is 8.5625 in. tall from engine to top of distributor cap.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

MSD Pro-Billet distributors share the same CNC machining techniques as the rest of the MSD distributor line. They feature a housing that's machined from high-quality 6061-T6 aluminum for durability and show-quality looks. Their oversized shaft receives a QPQ coating for friction reduction and corrosion resistance, with the added strength of two sealed ball bearings that guide the shaft accurately at well over 10,000 rpm. An extra-long sintered bushing replaces the ball bearing at the bottom of Chevrolet models. TIG-welded on top of the polished steel shaft is MSD's accurate mechanical advance assembly. The weights are supported by nylon pads that allow the advance to operate smoothly throughout the rpm range.

For all-out racing, the advance mechanism can also be easily locked out. To accurately trigger the ignition, a high-output magnetic pickup is bolted to the base. This pickup produces a precise trigger signal that will never vary more than one degree at any rpm. A durable gear is installed for performance applications, and an MSD red cap with brass terminals and race rotor is supplied. They're available in standard and small diameter models for applications with limited clearance, and require the use of a separate ignition box such as an MSD 6, 7, 8, or 10 Series ignition.

Warranty

Questions & Answers Ask a Product Question
Q:

Will this work with an edelbrock 2929 super victor?

Asked by JON on June 18, 2017

A:

Thank you for your question. MSD Ignition 85840 will work with Edelbrock 2929.

Summit RacingSummit Racing Answer - August 02, 2017

+See All Answers (3) Answer This Question

Q:

Will this work with a billet cam? I was told that you can use a melonized gear instead of bronze. Does not say if it is a melonized gear or not. The cam is coming from COMP.

Asked by ADAM on November 16, 2017

A:

When you order the distributor tell the sales person which cam you have. They will tell you the correct part number.

STEVE from OR answered on November 24, 2017

Answer This Question

Q:

Will this distributor clear an edelbrock performer rpm airgap intake

Asked by DALLAS on September 03, 2017

A:

Yes

BRIAN from OH answered on September 10, 2017

Answer This Question

+See All Questions (3)

Most Helpful Reviews Review This Product

7 Customer Reviews for MSD Ignition 85840 - MSD Pro-Billet Distributors

Average Customer Review

5 Star

(5)

4 Star

(2)

3 Star

(0)

2 Star

(0)

1 Star

(0)

+See All 7 Reviews

john moore

Summit RacingSummit Racing Verified Purchase

MSD-85840
the product works very good 7000 rpm no promble the other MSD dist. would not go over 4000rpm I have a BOSS 351W FORD HAS producing 575 HP. happy in ms. JOHN MOORE

2 of 2 found this review helpful.

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Reviewer: from MS

Date: December 15, 2015

Appearance
Ease of Installation
Price/Value
Quality

Perfect for my FRPP cam

MSD-85840
This dizzy is already set up for the gear on my FRPP F303 cam, has great instructions for setup and complete spring/bushings to do so. Set it at 12deg for initial start, ran it for a while to start break in, ran it up to 3000rpm and set it all in with my spring/bushing combo and it makes my 351w sing. Lots of comments out there about failed pickup units, so I bought a spare, just in case. ...read more

2 of 2 found this review helpful.

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Reviewer: from PA

Date: December 03, 2014

Appearance
Ease of Installation
Price/Value
Quality

Great but...

Summit RacingSummit Racing Verified Purchase

MSD-85840
Great distributor, but wouldn't clear my intake. Ended up getting a skinnier msd distributor. Easy return tho.

1 of 2 found this review helpful.

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Reviewer: from MN

Date: January 02, 2015

Appearance
Ease of Installation
Price/Value
Quality

Big improvement in operation!

Summit RacingSummit Racing Verified Purchase

MSD-85840
I was unable to determine the reason that my old distributor did not provide full advance and Kelly engine was hot so I purchased this one. It installed easily and had all the required parts to adjust the timing to match the engine manufacturers recommendations. The car runs 100% better now.

1 of 2 found this review helpful.

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Reviewer: from United States

Date: July 19, 2014

Appearance
Ease of Installation
Price/Value
Quality

Good Distributor

MSD-85840
This distributor does not come with a melonized gear. Currently MSD does not have one for the SBF per tech. I will use a bronze and check it periodically.

0 of 0 found this review helpful.

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Reviewer: from NM

Date: May 08, 2018

Appearance
Ease of Installation
Price/Value
Quality

Some parts are not legal for use in California or other states with similar laws / regulations

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