MSD
MSD 8578 for Ford 351W Small Diameter Pro-Billet Distributor
MSD 8578 for Ford 351W Small Diameter Pro-Billet Distributor
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Genuine MSD part.
MSD engineers fit all of their high performance distributor experience into a special compact housing designed to be less obtrusive for Ford engines. The diameter of the special cap and housing are 5/8" smaller than stock for Ford distributors providing extra room in front of the engine. The new MSD cap features spark plug style terminals and is firmly screwed down to the housing.
MSD performance ignition distributor, part number 8578, supplied new.
Key Features
- Polished steel shaft is QPQ coated and guided by a sealed ball bearing
- Billet housing is 5/8” smaller in diameter than stock for Ford distributors
- Easy-to-adjust mechanical advance with supplied springs and stop bushings
- Advance weight pins are staked and tig welded to the plate
- Must be used with an MSD Ignition Control
- CNC machined billet aluminum housing and billet aluminum base
Fitment
- Fits Ford 351 Windsor V8
This part is built for the engine families named above rather than for one body style. Check your engine against that list before ordering.
Specifications
- Brand: MSD
- Manufacturer Part Number: 8578
- Item Type: Electrical
- CARB Executive Order Number: D-40-39
- Color: Red
- Distributor Type: Magnetic Pickup
- Gear Material: Cast Iron Melonized QPQ Coated
- Grade Type: Performance
- Product Type: Distributor
- Sub Category: Distributor and Magneto
- Country of Manufacture: United States
- Condition: New
- Shipping Weight: 4.8 lb
Images are for illustrative purposes. The product you receive may differ in finish or packaging from the photograph.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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Manufacturer's Warranty — MSD
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Manufacturer's Warranty — MSD
MSD warrants this product to be free from defects in material and workmanship under its intended normal use for one year from the date of the original purchase, when it is properly installed and purchased from an authorized MSD dealer. The warranty is void for products purchased through auction websites. A part found defective is repaired or replaced at MSD's option, and a covered item is returned free of charge using Ground shipping. Intended normal use means the item is used as originally intended and for the original application as sold by MSD: any modification to the item, or use on an application other than what MSD markets the product for, voids the warranty. MSD states that it is the sole responsibility of the customer to determine that the item will work for the application intended, and that MSD accepts no liability for custom applications. All returns must have a Return Material Authorization (RMA) number issued before being returned — contact MSD Customer Service at (915) 857-5200 for the number and shipping information, and proof of purchase must be supplied for verification. When returning a unit for repair, leave all wires at the length at which they were installed and include a detailed account of the problem and of the components and accessories installed on the vehicle; the repaired unit is returned by Ground shipping, which is covered by the warranty. After the warranty period has expired, repair service is based on a minimum and maximum fee. Technical support is on (915) 855-7123, 7:00 a.m. to 5:00 p.m. Monday to Friday mountain time. This shall constitute the sole remedy of the purchaser and the sole liability of MSD; to the extent permitted by law it is exclusive and in lieu of all other warranties, express or implied, including any implied warranty of merchantability or fitness, and in no event shall MSD or its suppliers be liable for special or consequential damages.
Warranty terms are set by the manufacturer and may change. Full details and claims are handled directly by MSD. Contact us if you need help with a warranty claim.

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