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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
Holley 565-310 Sniper EFI HyperSpark Distributor Oldsmobile 307 330 350 400 403Overview: HyperSpark distributors are plug and play with all Holley Sniper EFI systems, featuring a high quality billet distributor housing, hall effect crank trigger sensor, and they come included with the foolproof patented clear installation cap. Hyperspark CD Ignition Box (556 152) and Ignition Coil (556 151) sold separately. Features: Hall Effect crank trigger sensor housing provides a noise free RPM signal to the Sniper ECU Billet distributor
Overview:
HyperSpark distributors are plug and play with all Holley Sniper EFI systems, featuring a high-quality billet distributor housing, hall effect crank trigger sensor, and they come included with the foolproof patented clear installation cap.
Hyperspark CD Ignition Box (556-152) and Ignition Coil (556-151) sold separately.
Features:
- Hall Effect crank trigger sensor housing provides a noise-free RPM signal to the Sniper ECU
- Billet distributor housing provides corrosion resistance and stylish looks!
- Patented Clear Installation cap eliminates any confusion while installing the distributor.
- Easiest plug and play way to add timing control to a Sniper EFI Installation.
- Distributor shutter wheel is pinned and welded to the shaft, for decades of reliable accuracy.
- Includes Wire Retainer for a clean installation.
- Comes with Cast Gear Installed - contact camshaft manufacturer for recommended gear material.
- Designed to be used with Sniper EFI HyperSpark CD box P/N 556-151 and Ignition Coil 556-152
- Available in Black or Shiny Billet Aluminum to match any engine bay
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1972 - 1976 | Oldsmobile | 98 | 455/7.5L V8 | |
| 1968 - 1980 | Oldsmobile | Cutlass Supreme | 350/5.7L V8 | |
| 1978 | Oldsmobile | Cutlass Supreme | Base | 350/5.7L V8 |
| 1972 - 1976 | Oldsmobile | Custom Cruiser | 455/7.5L V8 | |
| 1980 | Oldsmobile | Cutlass Cruiser | 350/5.7L V8 | |
| 1980 - 1990 | Oldsmobile | Custom Cruiser | 307/5L V8 | |
| 1977 | Oldsmobile | Cutlass Salon | 403/6.6L V8 | |
| 1966 - 1974 | Oldsmobile | Toronado | ||
| 1979 - 1980 | Oldsmobile | Toronado | 350/5.7L V8 | |
| 1968 - 1975 | Oldsmobile | Vista Cruiser | 350/5.7L V8 | |
| 1984 | Oldsmobile | Cutlass Calais | Hurst | 307/5L V8 |
| 1977 - 1980 | Oldsmobile | 98 | 350/5.7L V8 | |
| 1977 - 1980 | Oldsmobile | Custom Cruiser | 350/5.7L V8 | |
| 1970 - 1976 | Oldsmobile | Cutlass | 455/7.5L V8 | |
| 1968 - 1980 | Oldsmobile | Delta 88 | 350/5.7L V8 | |
| 1973 - 1979 | Oldsmobile | Omega | 350/5.7L V8 | |
| 1970 - 1975 | Oldsmobile | Vista Cruiser | 455/7.5L V8 | |
| 1969 - 1971 | Oldsmobile | Delta 88 | Base | 350/5.7L V8 |
| 1977 - 1979 | Oldsmobile | 98 | 403/6.6L V8 | |
| 1965 - 1966 | Oldsmobile | Dynamic 88 | ||
| 1965 - 1971 | Oldsmobile | 98 | ||
| 1985 - 1987 | Oldsmobile | Cutlass Salon | 307/5L V8 | |
| 1975 - 1980 | Oldsmobile | Cutlass Salon | 350/5.7L V8 | |
| 1980 - 1985 | Oldsmobile | Toronado | 307/5L V8 | |
| 1968 - 1976 | Oldsmobile | Delta 88 | 455/7.5L V8 | |
| 1970 - 1972 | Oldsmobile | F85 | 455/7.5L V8 | |
| 1969 - 1971 | Oldsmobile | Delta 88 | Base | 455/7.5L V8 |
| 1980 - 1985 | Oldsmobile | Delta 88 | 307/5L V8 | |
| 1965 | Oldsmobile | Jetstar I | ||
| 1982 - 1983 | Oldsmobile | Cutlass Calais | 307/5L V8 | |
| 1968 - 1972 | Oldsmobile | F85 | 350/5.7L V8 | |
| 1980 - 1984 | Oldsmobile | 98 | 307/5L V8 | |
| 1981 - 1983 | Oldsmobile | Cutlass Cruiser | 307/5L V8 | |
| 1977 - 1978 | Oldsmobile | Toronado | 403/6.6L V8 | |
| 1965 - 1966 | Oldsmobile | Starfire | ||
| 1977 - 1979 | Oldsmobile | Delta 88 | 403/6.6L V8 | |
| 1965 - 1968 | Oldsmobile | Cutlass | 400/6.6L V8 | |
| 1965 - 1967 | Oldsmobile | Delta 88 | ||
| 1988 | Oldsmobile | Cutlass Supreme | Classic | 307/5L V8 |
| 1965 - 1971 | Oldsmobile | 442 | ||
| 1969 - 1971 | Oldsmobile | Delta 88 | Custom | 350/5.7L V8 |
| 1969 - 1971 | Oldsmobile | Delta 88 | Royale | 455/7.5L V8 |
| 1971 - 1976 | Oldsmobile | Cutlass Supreme | 455/7.5L V8 | |
| 1968 - 1980 | Oldsmobile | Cutlass | 350/5.7L V8 | |
| 1982 - 1987 | Oldsmobile | Cutlass Supreme | 307/5L V8 | |
| 1971 | Oldsmobile | Delta 88 | Royale | 350/5.7L V8 |
| 1976 | Oldsmobile | Cutlass Tiara | 455/7.5L V8 | |
| 1968 - 1969 | Oldsmobile | Vista Cruiser | 400/6.6L V8 | |
| 1969 - 1971 | Oldsmobile | Delta 88 | Custom | 455/7.5L V8 |
| 1984 | Oldsmobile | Cutlass Calais | Base | 307/5L V8 |
| 1967 | Oldsmobile | Delmont 88 | 425/7L V8 | |
| 1968 | Oldsmobile | Delmont 88 | 455/7.5L V8 | |
| 1979 - 1980 | Oldsmobile | Cutlass Calais | 350/5.7L V8 | |
| 1965 - 1966 | Oldsmobile | F85 | Base | 400/6.6L V8 |
| 1977 - 1979 | Oldsmobile | Custom Cruiser | 403/6.6L V8 | |
| 1975 - 1976 | Oldsmobile | Toronado | 455/7.5L V8 | |
| 1968 | Oldsmobile | Delmont 88 | 350/5.7L V8 | |
| 1975 - 1976 | Oldsmobile | Cutlass Salon | 455/7.5L V8 | |
| 1981 | Oldsmobile | Delta 88 | Royale Brougham | 307/5L V8 |
| 1979 | Oldsmobile | Cutlass Salon | Base | 350/5.7L V8 |
| 1981 | Oldsmobile | Delta 88 | Base | 307/5L V8 |
| 1971 | Oldsmobile | Custom Cruiser | ||
| 1981 | Oldsmobile | Delta 88 | Holiday | 307/5L V8 |
| 1979 | Oldsmobile | Cutlass Salon | 442 | 350/5.7L V8 |
| 1966 | Oldsmobile | F85 | Holiday | 400/6.6L V8 |
| 1981 | Oldsmobile | Delta 88 | Royale | 307/5L V8 |
| 1977 | Oldsmobile | Cutlass | 403/6.6L V8 | |
| 1988 | Oldsmobile | Cutlass Supreme | Classic Brougham | 307/5L V8 |
| 1965 | Oldsmobile | Jetstar 88 | ||
| 1979 | Oldsmobile | Cutlass Salon | Hurst | 350/5.7L V8 |
| 1977 | Oldsmobile | Cutlass Supreme | 403/6.6L V8 | |
| 1976 | Oldsmobile | Cutlass Tiara | 350/5.7L V8 |
Specs:
| Brand | Holley Sniper EFI |
|---|---|
| Color | Shiny |
| Distributor Type | Hall Effect |
| Emission Code | 3 |
| Material | Billet Aluminum |
| Product Type | Distributor |
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
- If time is of the essence, please consider selecting expedited delivery for faster service.
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 1878 reviews
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Product Reviews
★★★★★ 5
Very good product
Size: Medium, Color: (001) Black / Black / Pitch Gray
I purchased these to wear inside lowcut slip on casual shoes, I don't particularly like to not wear socks in my shoes for hygienic reasons. Prior to purchasing these socks, all I could find were those made of very light beige hosiery type material , and my slip on shoes would slide around a bit. These are light weight and breathable athletic type material, with a very good gripper strip at the heel. One pair of my slip on casual shoes have a particularly lower cut in the toe area, but the shoe is black and I chose the black color and though I see a hint of the sock there, it matches and does not detract from the look of the casual solid black shoe
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
They stay out! No more sock wads!
Size: Medium, Color: (100) White / White / Mod Gray
Best no show socks ever made!!!!! I've been struggling for 2 years to find ones that actually stay on your foot, even other national brands, and I just became content wearing my sneakers without socks. They ALWAYS slid down into my show & I ended up walking on a wad of sock until I could fix it...or usually just took them off after a couple of tries. Enter Under Armor!!! They a mid weight, but not very thick & still breathable. They work too by actually staying on your foot! Not once have they slid down into my show!! Very comfortable but they could be a little more affordable.
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Reviewed in the United States on August 1, 2025
★★★★★ 5
Love!
Size: Large, Color: (100) White / White / Mod Gray
Ive tried so many no show socks but I love these. This is the 3rd set I've bought. They never slip off and the material is thin and breathable. Perfect for working out.
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Reviewed in the United States on March 2, 2026
★★★★★ 5
True no-show socks that don’t slide down!
Size: Medium, Color: (100) White / White / Mod Gray, Size: Medium, Color: (100) White / White / Mod Gray
This is the first pair of no-show socks I’ve tried that actually don’t slide down into my shoes. Trust me… I have tried lots of different pairs and this is the one! They fit perfectly. They’re not too thick and they’re obviously durable because I wash them after each wear, so daily.
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Reviewed in the United States on March 21, 2026
★★★★★ 4
Great fit but expensive
Size: Medium, Color: (252) Blush Beige / White / Castlerock
These are really great socks. I love them, but they are definitely pricey.
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Reviewed in the United States on March 30, 2026