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Description
Chevy V8 Pro-Billet Distributor 85551Different 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
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.
Features:
- 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
About MSD
Explore MSD's range of unrivaled ignition systems and components at Holley.com!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 4
Great product for dry, sensitive under eyes, however does not really reduce wrinkles
Great moisturizer. While it’s marketed as reversing wrinkles that has not been my experience however I have very thin skin underneath my eyes that is often dry and very dark from allergies. I put this on every day and every night and I have noticed a huge difference in the way, my eyes look. I wouldn’t say it reduces wrinkles, but it definitely is really a great hydrator, especially if you have allergies. It’s very good for sensitive skin. I do use it all over my face, especially around my mouth area as well and again haven’t noticed that it really reduces my wrinkles, but it definitely helps. Hydrate all those sensitive problem areas. I liked it so much. I bought it twice.
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Reviewed in the United States on May 29, 2026
★★★★★ 3
Doesn't give instant results like those videos you see but still works good
Ive been seeing so many videos with different people saying how this stuff works instantly on their lines and bags under their eyes. I thought when I got it it was going to be oily because in those videos it literally looks like they have oil on their face. HOWEVER, this is more like a chapstick texture. I tried to use it on my eye bags as soon as I got it but I swear it almost made them look worse. Those videos showing them getting results instantly just aren't true. I've only been using it for a few days and I do see the lines on my forehead & between my eyes are definitely less noticeable so it is doing something so far! My bags however it's just done nothing noticeable for YET. That will probably take a couple weeks to show results. So long story short, if you're thinking about buying this thinking you're going to get the results from those videos going around you'll be disappointed but it does still give results. I will probably update after a couple weeks or however long it takes for my bags under my eyes to go away or to at least see results. My lines on my face aren't very prominent but my bags under my eyes are so we'll see.
Also this product isn't greasy I have an oily T zone and this doesn't make my face oily at all. If you don't like how it feels when you rub the stick on your face then use your hands and rub the product in to the skin and it will completely absorb the product.
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Reviewed in the United States on January 1, 2026
★★★★★ 5
One of the Most Useful Skincare Products I Own
Title: One of the Most Useful Products for Mature Skin — Smooths, Protects, and Works Beautifully Under Makeup
At 52 with post-menopausal dry, mature skin, I’m always looking for products that don’t just sit on the surface, but actually improve how my skin looks and behaves throughout the day. This surprised me in the best way.
This is not a treatment product, and it’s important to set that expectation upfront. This is a barrier-supporting, smoothing balm, and when you use it for what it is, it performs exceptionally well.
The texture is where it really wins. It’s a solid balm stick, but it glides effortlessly without dragging or pulling on the skin, which is critical for more delicate, mature areas. It melts just enough on contact and leaves behind a smooth, lightweight, conditioned finish that feels nourishing without being greasy or heavy.
From a formulation standpoint, this is built around silicones and emollients that give an immediate soft-focus effect, combined with oils and butters that help reinforce the moisture barrier. There’s also adenosine for long-term wrinkle support and collagen extract for conditioning, though this is not going to rebuild collagen or act like a corrective serum.
What it does do extremely well is improve the appearance of the skin instantly. It softens fine lines, reduces that dry, crepey look that can show up midday, and adds just enough slip and hydration to make the skin look healthier and more refined.
Where I really love this is under makeup.
It creates a smooth, hydrated base that helps foundation sit better and prevents it from catching on dry areas. It doesn’t pill, it doesn’t break anything down, and it adds that subtle cushion that mature skin really benefits from. I’ve also used it over makeup for touch-ups, and it works just as well without disturbing what’s underneath.
This has quickly become one of those products I keep within reach because it’s so practical. It’s not about transformation — it’s about maintenance, comfort, and immediate visual improvement, which, for mature skin, is often exactly what you need.
No irritation for me, and it layers seamlessly with the rest of my routine.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Consistency is the key
This product is amazing. You have to keep in mind that it doesn’t give instant results. However, consistent use will reveal wonders. I use my whole stick before I started to see results. When my stick was gone, is when I looked in the mirror and I was shocked. My forehead was tighter and lifted. My under eye bags had disappeared, and my eyes looked tighter. My skin was just so youthful looking. So I was like OK!! I need to order another one, I swear I didn’t think it was working at all until the sticker was gone. And I just woke up one morning and noticed a huge difference. I wonder if the changes will last?
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Reviewed in the United States on May 25, 2026
★★★★★ 4
The balm stick needs to roll all the way to the top
Overall I like the product itself I think its very moisturizing and it does seem to help the appearance of wrinkles however I think for the cost its pretty wasteful in the application. The rollup stops and there is still a ton of product on the bottle. I had to dig it out with my finger for a good 2 weeks worth of product I dont understand why it doesnt roll all the way to the top..
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Reviewed in the United States on June 1, 2026