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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
4.7 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Finally a bra that fits!
Size: 38G, Color: Black
This is my first time wearing this bra, and right away I can tell it’s the best fit I’ve ever had. I wear a 38G, and the support is incredible without feeling tight or uncomfortable. The band sits snug (on the first set of hooks—yes!) and doesn’t dig into my skin. The cups give full coverage without spillage, and the lift is exactly what I needed.
So far, I’m very happy with how it feels under clothes, and I actually feel supported and comfortable.
I will update this review after two weeks of wear to let you know how it holds up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 16, 2025
★★★★★ 3
Not durable
I love the initial fit and feel of this bra. Its very comfortable and silky. I was disappointed to discover the poor design which allows the underwire to poke through much too quickly. It happened on both of my bras from this company. I bought 2 hoping the first was just defective but the second had the same issue in the same area.
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Reviewed in the United States on November 8, 2023
★★★★★ 5
Great coverage for a chesty gal with smaller band size
Size: 34F, Color: Gentle Rose
I don’t know why I can find bras that fit better on Amazon than in store, but this one is a good one. It fits well and is as comfy as you can expect from an underwire. It has zero lining and that can be an issue, so pay attention to that if it is important to you for the nip coverage!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 18, 2025
★★★★★ 1
Did not last long
Size: 44E, Color: Black
I really like this bra very much, it was very comfortable and fit well, but the wire popped out of the fabric in less than a couple of months. Very frustrating.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
★★★★★ 2
Good bra but doesn't last long
Size: 40H, Color: Brown Purple
Love these bras...BUT...after just a few short months they have broken. I bought a bunch of these at first because they are very comfy and fit well. However, I now only have 2 left because the underside has broken on all the rest. It has snapped on 2 of them and 3 other it has popped through the lining. I'll have to find something else.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026