SKU: 77503781500

Holley 565-310 Sniper EFI HyperSpark Distributor Oldsmobile 307 330 350 400 403

Sale price$233.98 Regular price$259.98
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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:
  1. 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
SKU: 77503781500

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4.9 ★★★★★
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Boito
Charlottesville, US
★★★★★ 5
These fit very nicely, are comfortable, and work for my wide feet!
Size: 12 Wide, Color: Brown
Once I learned while shoe shopping in my youth that I needed wide-sized shoes, I wasn't able to easily choose from any shoes I saw in the store. I usually have to go find the wide widths and have to deal with the limited styles they have. Shopping online has been hit and miss, too. Sometimes, shoes are advertised as wide width, but end up still being too narrow. These shoes fit me just right. They were not too tight at the toes, gave good width at the arch, and the opening was large enough that I didn't have to undo every single lace just to get my foot in. They also look nice, and I'm sure will take a decent polish. Also, note that this does say it's an Oxford shoe, but it does have the open lacing and is more of a derby-style shoe. This also helps with sizing for my wide feet. If I didn't already have a pair of black shoes, I'd look at picking one of these up. My only reservation with these is that the soles are not dark-colored to complement a more formal style. I feel the white makes them a little more casual. The sole is also more transparent/opaque coloring at the heel and underneath, which you can kind of see-through, so keep that in mind. It's not fully clear, but is kind of transparent, which I was not expecting. I think it also shows where it picks up dirt as you wear it. Just more of a style cue one way or another. As a reference, I buy the 4E wide and Extra Wides in New Balance and Skechers. I also have a hard time getting any good fit in Nike shoes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 2, 2023
M
Verified Purchase
Michelle sealock
Battle Creek, US
★★★★★ 5
Looks and feel good
Size: 10.5, Color: Black
Shoes look dressy but feel comfortable. They are stiff but very comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
R
Verified Purchase
Riley H.
Charlottesville, US
★★★★★ 5
Well made and affordable
Size: 10.5, Color: Brown
Very comfortable, great price!!!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
T
Verified Purchase
Tatiana chach
Waukegan, US
★★★★★ 5
The quality is excellent for the price
Size: 10, Color: Silver-pu
I am absolutely in love with these DREAM PAIRS double bowknot heels—they are stunning, elegant, and even more beautiful in person! From the moment I opened the box, I could tell these shoes were going to be a showstopper. The double bow design is so feminine and eye-catching, and the added crystal rhinestone detailing gives just the right touch of sparkle without being over the top. The open square toe is super flattering and modern, and it gives the shoe a stylish, high-end look. The ankle strap adds extra stability and keeps the heel secure while walking, dancing, or standing for long periods. It fastens comfortably without digging into the skin, and the buckle feels sturdy and well made. The heel height is perfect—high enough to elongate the legs and give that confident, dressed-up vibe, but surprisingly comfortable to walk in. The insole has a nice cushion that makes them easier to wear for parties, weddings, or nights out without feeling like your feet are dying by the end of the night. I wore these to an event and got endless compliments—everyone thought they were designer! They photograph beautifully and add a glamorous touch to any outfit, whether you're wearing a dress, jumpsuit, or even tailored pants. The quality is excellent for the price—the materials feel durable, the craftsmanship is clean, and nothing looks cheap or flimsy. The bows hold their shape perfectly and the stones stay secure without falling off.
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Reviewed in the United States on October 9, 2025
M
Verified Purchase
Moni
Lexington, US
★★★★★ 5
Beautiful and comfortable!
Size: 7.5, Color: Champagne-pu
These shoes were not only beautiful, sexy and cute but they were comfortable!! I have pretty thin feet but I cannot normally wear heels. I can only wear heels for about a half hour max.I walked in these heels almost all night!! I could not believe it. The only reason I changed was because my feet kept slipping forward (sweaty feet -full disclosure) so if I had not forgotten the slip pads, I could have wore them longer. I received so many compliments. I loved the way they sparkled too. My fave heels yet!!! You won’t regret buying them. The fit is comfortable. The front strap is a clear plastic but the bow is made out of a material that is durable and pretty (does not look cheap.) The arch support is comfy and the strap around the ankle is secure. Dream Pairs never disappoints!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026

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