Holley Hyperspark Ignition Kit (HO565-300K)
SKU: 5961346902

Holley Hyperspark Ignition Kit (HO565-300K)

Sale price$1123.20 Regular price$1248.00
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Description

Holley Hyperspark Ignition Kit (HO565-300K)HO565 300K HYPERSPARK IGNITION KIT, CHEVY Suit Small & Big Block Chev Part Number: HO565 300K Holley HyperSpark Master Kits were designed to make upgrading your ignition on a Sniper EFI equipped engine simple. When installed concurrently with a new Sniper EFI system, the combination creates the easiest to install EFI conversion on the market only four flying lead connections required! This harness only requires one connection to a switched power

HO565-300K - HYPERSPARK IGNITION KIT, CHEVY

Suit Small & Big Block Chev

Part Number: HO565-300K

Holley HyperSpark Master Kits were designed to make upgrading your ignition on a Sniper EFI-equipped engine simple. When installed concurrently with a new Sniper EFI system, the combination creates the easiest to install EFI conversion on the market - only four flying lead connections required! This harness only requires one connection to a switched power source, battery positive, battery negative, and fuel pump power.
The pre-terminated connectors and a built in 40A relay provides power to all of the components within the system. With the included Sniper EFI Main Harness you no longer need to run multiple wires to provide switched power for each individual component. This not only helps prevent wiring confusion, it will speed up your install time and clean up your engine bay. Just route the harness and pre-terminated connectors to your HyperSpark coil, distributor, and ignition box and plug them in.
Features:
Plug and Play Sniper EFI Main Harness replaces the standard Sniper EFI harness with four loose leads, Battery Positive, Battery Ground, Switched 12v, and Fuel Pump Power, for a simple and streamline installation
Designed for existing or new Sniper EFI installations. The HyperSpark Master Kit harness retains the same flying lead wire colors as the Sniper EFI main harness. New installations will not use the Sniper EFI standard harness or coil driver
Complete Ignition system in a box, including: HyperSpark Ignition Box, HyperSpark Ignition Coil, HyperSpark Distributor (for your application), and a plug and play main harness
HyperSpark Distributors feature a Hall Effect crank trigger sensor providing a noise-free RPM signal to the Sniper ECU
Patented Clear Installation cap eliminates any confusion while installing the distributor
HyperSpark CD Ignition box is seal and powder coated to be installed in the harshest of locations
External LED on Hyperspark CD Ignition box helps verify 12v, cranking RPM, and low battery voltage
135mJ of spark energy when used with the HyperSpark Ignition coil, ensures complete combustion
Integrated ignition coil bracket simplifies mounting the Ignition coil
Ignition coil connector removes any doubt of loose connections at the Ignition coil
Enables timing control on a Sniper EFI Installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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
SKU: 5961346902

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ryguy
Belleville, US
★★★★★ 5
Soft and smooth cover
Color: Grey, Size: Body(20"X 54")
This is a nice pillow cover overall. The fabric feels good and it's comfortable to sleep on, especially compared to a more basic cotton cover. It is maybe a little thinner than I expected, so if you want something thick and heavy this probably isn't that. But for a soft smooth cover that fits and feels decent, I think it's worth it. No major complaints from me after using it.
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Reviewed in the United States on May 16, 2026
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Kindle Customer
Lake Worth, US
★★★★★ 5
These are the ones you want
Color: Grey, Size: Body(20"X 54")
May need to iron them out when wash/dried but my old ones still look new- soft, cooling, smooth, color is still great. Not itchy or cheap feeling. Buying a new set for family.
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Reviewed in the United States on May 15, 2026
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Julianne
Fort Morgan, US
★★★★★ 5
Very nice pillowcases
Color: Haze Blue, Size: 2 Pack Standard(20"X 26")
Very pretty pillowcases. I washed them in cold water and dried them on low before using. They came out a little wrinkly but smoothed out on the pillow. The fabric is shiny and rich looking. It's not hot yet, here in Texas, but I am anticipating the coolness of these pillowcases to feel very nice. I appreciate the envelope closure. It gives it a finished look. There was no odd odor. They feel good like they'll last for a long time. I am a satisfied customer.
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Reviewed in the United States on April 8, 2026
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A. Shepherd
Charlottesville, US
★★★★★ 4
Body pillow covers
Color: White, Size: Body(20"X 54")
I ordered the body pillow covers. They fit my pillow perfectly and the fabric is smooth and silky, but I did not find them cooling.
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Reviewed in the United States on June 1, 2026
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Khendri
Chelsea, US
★★★★★ 5
Cooling King-Size Pillows (used on a Queen pillows to tuck the extra in)
Color: Navy Blue, Size: 2 Pack King(20"X 36"), Color: Navy Blue, Size: 2 Pack King(20"X 36")
🛏️ Product Review: Cooling King-Size Pillows (used on a Queen bed) ⭐ The Good • These are king-size pillows, which I actually love on a queen bed because I can tuck the ends into the fabric. • The fabric feels slick and cool, but you don’t slip off of it. • They feel cold to the touch right out of the package (which is wild). • I sleep extremely hot and even run fevers at night due to a medical condition (literally 101–102° sometimes), and these pillows still stay cool where I lay my head. • I’ve honestly never slept this well in my life. • For the price, you cannot beat them, and they go on sale often. • These beat any high-end version I’ve tried. • If you sleep normal-temp and not lava-hot like me, you’re going to be VERY comfortable with these. ⚠️ The Bad • The fabric does show crease lines. • If wrinkles bother you, this might annoy you (doesn’t bother me personally). 🔧 What I’d Change / Tips for Care • Don’t use fabric softener — it clogs the cooling fabric and ruins how it works. • Wash with unscented detergent + a little vinegar. • Dry on low heat only (do NOT dry on high if you want the fabric to keep working long-term). ✅ Final Thoughts I will literally never not own these again. If you sleep hot, night-sweat, or just want a pillow that actually stays cool — these are it. 10/10 recommend.
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Reviewed in the United States on February 17, 2026

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