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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4
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Description
Ready-To-Run Hyperspark Distributor, For 383-400 Chrysler, Cast Gear-565-345HyperSpark Ready to Run adds plug and play ignition timing control to any Holley EFI system. This line of distributors comes with a built in ignition coil driver, removing the need of mounting an ignition box or external coil driver. The design includes a single Hall Effect sensor providing engine rpm to the ECU. The precision shutter wheel design ensures accurate timing, even at very high engine speeds. They can also be used with other EFI systems
HyperSpark Ready to Run adds plug and play ignition timing control to any Holley EFI system. This line of distributors comes with a built-in ignition coil driver, removing the need of mounting an ignition box or external coil driver. The design includes a single Hall Effect sensor providing engine rpm to the ECU. The precision shutter wheel design ensures accurate timing, even at very high engine speeds. They can also be used with other EFI systems that support a Hall Effect crank signal input.
Features:
- Easiest plug-and-play way to add timing control to any Sniper EFI installation
- Designed to work with HyperSpark ignition coil PN 556-152, also compatible with most canister ignition coils using the supplied ring terminals
- Built-in ignition coil driver, safely provides enough spark energy for applications up to 450 hp
- Patented clear installation cap eliminates any confusion while installing the distributor
- Cast aluminum distributor housing looks right at home in nearly every engine bay
- Comes with cast gear installed - contact camshaft manufacturer for recommended gear material
- 565-341S – comes with steel gear for SBF applications with an aftermarket camshaft
- Precision shutter wheel provides the ECU a clean rpm signal via a single Hall Effect sensor, ensuring accurate timing even at high engine rpm
- Shutter wheel design allows for a “timed sequential” fueling strategy with Terminator X, HP, and Dominator ECU’s
- Includes wire retainer for a clean installation
FEATURES
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 23 reviews
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Product Reviews
★★★★★ 3
Weird smell
Color: White-cooling Basic, Size: Queen(Pack of 2)
The pillows are great for someone looking for something cool and comfortable. We loved them so much that we bought a second pair. However, we were seriously disappointed with the odor of our last purchase. They give off a strong and indescribable chemical/burning plastic smell so nauseating that it’s difficult to sleep with. We’re hoping this issue will resolve with a couple more washes of the pillow cases, but am worried the source is the stuffing itself.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
helped treat my sore neck
Color: White-cooling Basic, Size: Camping Pillow(Pack of 1)
This pillow — after dialing in the right amount of shredded foam — has greatly helped my sore neck. Initially, I had to remove some foam. Then I gradually added foam until it reached optimum comfort and support.
It is also CPAP-friendly — especially when I position my head near the pillow's edge. (I am a left-side sleeper.)
I like the travel size because I use a bulky hugging pillow to ease stress on my shoulder and elbow. That makes my side of the bed feel cramped if using a larger head pillow. A smaller pillow is easy to flip end-to-end in the middle of the night.
I have spent lots of money on pillows over the years, but this is the best I've ever had for relieving [1] neck pain and [2] CPAP mask seal problems. Very comfortable, supportive, and affordable.
I did not notice any unpleasant smell — and I am usually sensitive to that kind of thing.
Would highly recommend.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Love them!
Color: White-cooling Basic, Size: Queen(Pack of 2)
Love them! After 10 years with our MyPillows, they finally lost their fluff. The reviews I read of the MyPillows of today were not good; they didn’t have as much filling as they used to. These pillows remind me of how fluffy our new MyPillows were 10 years ago!! You sink right into them and can mush them however and they stay. These are way cheaper than the Coop and it’s the same concept; add or remove the filling as needed. The cooling side is a huge plus too! You won’t be disappointed with these pillows!
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Reviewed in the United States on May 22, 2026
★★★★★ 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
★★★★★ 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