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Description
Holley EFI Dual Sync BBC Tall Deck Distributor, Black - 565-204BKOverview: Introducing the next generation of Holley EFI Dual Sync Distributors, the new design features an improved shutter wheel, high quality dual Hall Effect sensors, and an MSD cap and rotor! While these distributors are designed to be used primarily in sequentially injected installations, you can easily use them as a crank trigger for TBI system also. The precision machined shutter wheel design ensures accurate timing, even at very high engine
Overview:
Introducing the next generation of Holley EFI Dual Sync Distributors, the new design features an improved shutter wheel, high-quality dual Hall Effect sensors, and an MSD cap and rotor!
While these distributors are designed to be used primarily in sequentially injected installations, you can easily use them as a crank trigger for TBI system also. The precision machined shutter wheel design ensures accurate timing, even at very high engine speeds. The Black anodized Gen 2 Dual Sync also included a QPQ coated shutter wheel for superior corrosion resistance, and the wheel has been pinned and welded to the shaft for increased reliability. These distributors can also be used with other EFI systems that support Hall Effect crank and cam sensor inputs. Do you need to a bronze gear for your billet cam? No problem, these distributors maintain MSD shaft diameters, making it easy to source a bronze gear!
Features:
- Plug and Play with Holley EFI and Sniper EFI with adapter harness part number 558-493
- Includes both crank and cam sensors to support sequential EFI operation
- Hall Effect sensor design provides precise timing control and noise immunity
- Black anodized CNC machined billet aluminum housing provides superior strength and great looks
- Integrated LEDs allow for easy setup
- Available for popular applications
- Comes with hardened steel distributor gear
- Precision machined shutter wheel designed for improved accuracy at extreme engine RPM
- Shutter wheel is pinned and welded to distributor shaft for superior reliability
- Blank cap available for Coil-On-Plug applications
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1970 - 1972 | Chevrolet | Kingswood | 402/6.6 V8 | |
| 1970 - 1972 | Chevrolet | Kingswood | 454/7.4 V8 | |
| 1973 - 1975 | Chevrolet | Laguna | 454/7.4 V8 | |
| 1991 - 1995 | Chevrolet | K2500 | 454/7.4 V8 | |
| 1992 - 1995 | Chevrolet | K2500 Suburban | 454/7.4 V8 | |
| 1977 - 1986 | Chevrolet | K30 | 454/7.4 V8 | |
| 1988 - 1995 | Chevrolet | K3500 | 454/7.4 V8 | |
| 1975 | Chevrolet | Malibu | Classic | 454/7.4 V8 |
| 1970 - 1975 | Chevrolet | Monte Carlo | 454/7.4 V8 | |
| 1988 | Chevrolet | R20 | Cheyenne | 454/7.4 V8 |
| 1988 | Chevrolet | R20 | Custom Deluxe | 454/7.4 V8 |
| 1988 | Chevrolet | R20 | Scottsdale | 454/7.4 V8 |
| 1988 | Chevrolet | R20 | Silverado | 454/7.4 V8 |
| 1987 | Chevrolet | R20 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R20 Suburban | 454/7.4 V8 | |
| 1989 | Chevrolet | R2500 | 454/7.4 V8 | |
| 1989 - 1991 | Chevrolet | R2500 Suburban | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R30 | 454/7.4 V8 | |
| 1989 - 1991 | Chevrolet | R3500 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | V20 Suburban | 454/7.4 V8 | |
| 1990 | Chevrolet | V2500 Suburban | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | V30 | 454/7.4 V8 | |
| 1989 - 1991 | Chevrolet | V3500 | 454/7.4 V8 | |
| 1993 | GMC | K2500 Suburban | SLE | 454/7.4 V8 |
| 1963 - 1969 | Chevrolet | Bel Air | 427/7 V8 | |
| 1965 - 1969 | Chevrolet | Bel Air | 396/6.5 V8 | |
| 1970 - 1975 | Chevrolet | Bel Air | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Bel Air | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | K30 Pickup | 454/7.4 V8 | |
| 1969 | Chevrolet | Kingswood | 396/6.5 V8 | |
| 1969 | Chevrolet | Kingswood | 427/7 V8 | |
| 1966 - 1969 | Chevrolet | Caprice | 427/7 V8 | |
| 1966 - 1969 | Chevrolet | Caprice | 396/6.5 V8 | |
| 1968 | Chevrolet | Chevelle | Malibu | 396/6.5 V8 |
| 1968 | Chevrolet | Chevelle | Nomad | 396/6.5 V8 |
| 1969 - 1970 | Chevrolet | Chevelle | 396/6.5 V8 | |
| 1970 - 1973 | Chevrolet | Chevelle | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Chevelle | 402/6.6 V8 | |
| 1968 | Chevrolet | Chevy II | 396/6.5 V8 | |
| 1965 | Chevrolet | Corvette | 396/6.5 V8 | |
| 1966 - 1969 | Chevrolet | Corvette | 427/7 V8 | |
| 1970 - 1974 | Chevrolet | Corvette | 454/7.4 V8 | |
| 1970 | Chevrolet | Estate | 454/7.4 V8 | |
| 1971 - 1972 | Chevrolet | Camaro | Base | 402/6.6 V8 |
| 1970 - 1972 | Chevrolet | Camaro | SS | 402/6.6 V8 |
| 1972 | Chevrolet | Camaro | Z28 | 402/6.6 V8 |
| 1973 - 1980 | Chevrolet | C10 Suburban | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | C20 Pickup | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | C20 Pickup | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | C20 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | C20 Suburban | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | C20 Suburban | 402/6.6 V8 | |
| 1976 - 1978 | Chevrolet | K5 Blazer | 454/7.4 V8 | |
| 1975 - 1980 | Chevrolet | C10 | 454/7.4 V8 | |
| 1973 - 1986 | Chevrolet | C20 Suburban | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | C30 Pickup | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | C30 Pickup | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | C30 Pickup | 454/7.4 V8 | |
| 1967 | Chevrolet | Camaro | Base | 396/6.5 V8 |
| 1967 | Chevrolet | Camaro | RS | 396/6.5 V8 |
| 1967 - 1969 | Chevrolet | Camaro | SS | 396/6.5 V8 |
| 1969 | Chevrolet | Camaro | Base | 427/7 V8 |
| 1969 | Chevrolet | Camaro | RS | 427/7 V8 |
| 1966 - 1970 | Chevrolet | El Camino | 396/6.5 V8 | |
| 1970 - 1974 | Chevrolet | El Camino | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | El Camino | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | G10 Van | Base | 454/7.4 V8 |
| 1973 - 1974 | Chevrolet | G20 Van | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | G30 Van | Base | 454/7.4 V8 |
| 1963 - 1969 | Chevrolet | Impala | 427/7 V8 | |
| 1965 - 1969 | Chevrolet | Impala | 396/6.5 V8 | |
| 1966 - 1967 | Chevrolet | Impala | Base | 396/6.5 V8 |
| 1966 - 1967 | Chevrolet | Impala | Base | 427/7 V8 |
| 1966 - 1967 | Chevrolet | Impala | SS | 396/6.5 V8 |
| 1966 - 1967 | Chevrolet | Impala | SS |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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4.8 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Beautiful throw
Color: Aqua, Size: Throw Size - 50" X 60"
great quality and so soft and warm......perfect color and good price! very happy with our purchase.
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Reviewed in the United States on March 14, 2025
★★★★★ 4
Super Comfortable and Soft
Color: White, Size: Throw Size - 50" X 60"
Feels luxurious and silky soft! It is not very thick but does keep me very warm. In fact I have to kick my legs out sometimes when I’m using it. It does shed A LOT! Will need to update after washing to see if that reduces the shedding. But it is beautiful and comfy. Is give it a 7 out of 10 for quality because of the shedding and the top and underneath pieces are only secured on the edges, which makes it move around and I have to grab the edges and shake to get its form back to normal. I would definitely purchase again. Especially if the shedding reduces it goes away after I run it through a wash cycle. I do NOT recommend drying in the dryer. It will mat I can almost guarantee that. Almost all blankets like these do if you dry them in a dryer with heat. Maybe no heat tumble might work, but NO heat.
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Reviewed in the United States on November 11, 2024
★★★★★ 5
Get it fluffy cozy
Color: Grey, Size: Throw Size - 50" X 60"
Great quality looks good as a accent to a bed ensemble
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Reviewed in the United States on September 20, 2025
★★★★★ 5
THE BEST, LEGIT FLUFFY
Color: Black, Size: Queen/King Size - 80" X 90"
This is exactly what I wanted, had to return two other blankets before I found this one. It is SO FLUFFY and soft! The pile is almost 3” long.. it is so fluffy I keep losing my remote control on it. So 5 stars I will continue to buy this blanket for every bedroom in my house we are all girls and we all love big fluffy blankies!!
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Reviewed in the United States on March 8, 2026
★★★★★ 5
You will not regret buying this blanket!
Color: Aqua, Size: Queen/King Size - 80" X 90"
I was actually looking for a cotton blanket to add to my bed for fall and winter. Then I came across THIS one. It happens to be the exact shade of (“seaglass” or teal or aqua or whatever you choose to call it) blue green that I am currently redoing my bedroom in. It was a teense more than I’d planned to spend on this project. But I was in a splurgey mood so I went for it.
I can honesty say that I’d happily pay twice as much. It’s much more beautiful and much more insanely soft than it looks in the pictures. While I don’t know how the blanket feels about me, I can assure you that I am madly in love with this gorgeous thing!
I can’t wait for it to cool off in Southern California so I can roll myself up in it. Maybe I’ll crank the A/C down to 50 degrees and pretend there are more than two seasons (summer and late summer) in California. Anyway, this would make a great gift. It would make a great gift for yourself. Self care is important! Spoil yourself! You, at the very least, deserve a cozy cuddly blanket. I’m certain that this luxurious blanket will cure insomnia. Maybe even depression. I’ve owned it for like 2 hours and I have a whole new outlook on life! I feel pampered, spoiled, like queen of the world, maybe even like Cleopatra!
I think that it should be obvious by now that I’m giving this furry looking blanket two thumbs way way up!
Sometimes I order things from Amazon and by the time they arrive Ive already forgotten about them. I was anxiously awaiting my blanket friends arrival and I was prepared to be very meh. Not this time! Nope! Best purchase ever! I know what I’m getting everyone for Christmas!
Buy several for future use. This blanket has made me deliriously happy!
Update: After owning this blanket for, like, a while, I still love it. Shockingly it washes up beautifully! A word of advice. Fabric softener is a big no no. It gets the fur gummy and feeling like unwashed hair after a month. I imagine. I’ve personally never gone with unwashed hair for more than a day or two. It is at its fluffy and soft best when you use one of those new Downey rinses instead. That seems to remove all residue and it comes out feeling even better than brand new. A word of warning. Do not picnic on this blanket. The fur will encase and preserve your crumbs better than Tupperware. You may find a lost treasure that you don’t actually want in there. Best used for sleeping only.
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Reviewed in the United States on October 12, 2024
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