MSD 85551 Pro-Billet Distributor For Sale - New and Used

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Chevy V8 Pro-Billet Distributor 85551

This is our most popular performance distributor. Must be used with an MSD 6, 7 or 8-series ignition.. Different springs and stop bushings are supplied so you can tune an advance curve to match your application.Must be used with an MSD 6, 7 or 8-series ignition.The housing is machined from a billet of 6061-T6 aluminum on a state-of-the-art CNC machine producing exact tolerances. For high rpm stability, a .500" steel shaft is supported by a sealed ball bearing and a long sintered bushing. This shaft also receives a QPQ coating for friction reduction and resistance to corrosion. A precision machined reluctor is attached to the shaft which triggers the magnetic pick-up mounted in the housing. This high output magnetic pick-up is the most accurate way to trigger your ignition. Plus, with no moving parts to wear or adjust, the pick-up is maintenance free. Just above the pick-up is MSD's adjustable mechanical advance assembly.

• Will not accept a vacuum advance canister
• O-ring seals can be added to modified blocks to improve oil pressure control
• Must be used with an MSD Ignition Control
• Mechanical advance assembly can be locked out for crank trigger systems
• Advance weight pins are staked and tig welded to the plate
• Polished steel shaft is QPQ coated and guided by a sealed ball bearing and extra long sintered bushing
• Special oil tract improves lubrication to the distributor and cam gear
• Nylon pads ensure smooth operation of the advance weights
• No CARB Exemption Order Number
• Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction
• Easy-to-adjust mechanical advance with supplied springs and stop bushings
• CNC machined billet aluminum housing and billet aluminum base
• Supplied with an HEI style distributor cap and rotor (accepts Cap-A-Dapts)
• Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range

General Policies

Warranty & Return Policy

• Holley Performance Products warrants new products to be free from defects in material and workmanship for a period of 90 days from date of purchase. Many items may have longer warranties please see Item Specifics above or contact us for information.
• Holley Performance Products Limited Warranty specifically does not apply to items or products, which have been (a) modified or altered in any way; (b) subjected to adverse conditions, such as misuse, neglect, accident, improper installation or adjustment, dirt or other contaminants, water,corrosion, or faulty repair; or (c) used in other than those applications recommended by Holley Performance Products. Holley Performance Products also does not warrant, and disclaims all liability for products used in racing activities and/or applications other than those specifically recommended in the current brand catalog.
• Warranties do not apply to items sold as Used. We want to make sure that every customer is completely satisfied with their purchase. Although obsolete, scratch & dent and used items do not have a warranty, we understand that things happen and every situation is different. Please let us know of any issues you may have before leaving response so we have an opportunity to make things right. We will do everything possible to make sure you are fully satisfied with your purchase and we want to earn your continued business!
• Buyer pays return shipping

Shipping & Tracking

• Please see the “Shipping and Payment” tab
• We ship all US orders via United Parcel Service (UPS Ground)
• A signature is required on all UPS orders over $750
• Tracking information will be sent via email after your package ships (you must supply a valid email address during checkout)
• We ship within 1 business day upon receipt of payment
• We do not ship to APO/FPO or US Post Office Box addresses
• We can not ship as a "GIFT" or ship anything internationally with changes to the invoice

Customer Service & response

• Our customer service hours are 8:00 am – 5:00 pm Central Time Monday thru Friday (excluding holidays)
• If you are not certain about an item or have questions, use the “Ask Seller a Question” link under the listing. We strive to answer questions submitted thru ’s message system within 1 business day
• We want you to be completely satisfied with your purchase – please let us know if you have any problems with your purchasebefore leaving responseso we have a chance to make it right – we want your repeat business!

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