Holley EFI Dual Sync BBC Tall Deck Distributor - 565-204
SKU: 57843027759

Holley EFI Dual Sync BBC Tall Deck Distributor - 565-204

Sale price$280.78 Regular price$311.98
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Description

Holley EFI Dual Sync BBC Tall Deck Distributor - 565-204Overview: 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 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
  • Includes both crank and cam sensors to support sequential EFI operation
  • Hall Effect sensor design provides precise timing control and noise immunity
  • CNC machined billet aluminum housing
  • 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
1991 - 1995 Chevrolet C2500 454/7.4 V8
1992 - 1995 Chevrolet C2500 Suburban 454/7.4 V8
1975 - 1986 Chevrolet C30 454/7.4 V8
1988 - 1995 Chevrolet C3500 454/7.4 V8
1970 - 1976 Chevrolet Caprice 454/7.4 V8
1975 Chevrolet El Camino Base 454/7.4 V8
1976 Chevrolet G20 Beauville 454/7.4 V8
1976 Chevrolet G20 Chevy Van 454/7.4 V8
1975 - 1996 Chevrolet G30 Beauville 454/7.4 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 427/7 V8
1970 - 1976 Chevrolet Impala 454/7.4 V8
1970 - 1972 Chevrolet Impala 402/6.6 V8
1968 - 1969 Chevrolet K10 Pickup 396/6.5 V8
1975 - 1986 Chevrolet C20 454/7.4 V8
1973 - 1986 Chevrolet C20 Suburban 454/7.4 V8
1990 - 1993 Chevrolet C1500 Cheyenne 454/7.4 V8
1990 - 1993 Chevrolet C1500 Silverado 454/7.4 V8
1990 - 1993 Chevrolet C1500 454 SS 454/7.4 V8
1990 - 1993 Chevrolet C1500 WT 454/7.4 V8
1970 - 1975 Chevrolet Bel Air 454/7.4 V8
1976 - 1978 Chevrolet K5 Blazer 454/7.4 V8
1975 - 1980 Chevrolet C10 454/7.4 V8
1973 - 1974 Chevrolet K10 Pickup 454/7.4 V8
1968 - 1969 Chevrolet K10 Suburban 396/6.5 V8
1970 - 1972 Chevrolet K10 Suburban 402/6.6 V8
1973 - 1974 Chevrolet K10 Suburban 454/7.4 V8
1968 - 1969 Chevrolet K20 Pickup 396/6.5 V8
1970 - 1972 Chevrolet K20 Pickup 402/6.6 V8
1973 - 1974 Chevrolet K20 Pickup 454/7.4 V8
1968 - 1969 Chevrolet K20 Suburban 396/6.5 V8
1970 - 1972 Chevrolet K20 Suburban 402/6.6 V8
1973 - 1985 Chevrolet K20 Suburban 454/7.4 V8
1968 - 1969 Chevrolet K30 Pickup 396/6.5 V8
1970 - 1972 Chevrolet K30 Pickup 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
1970 - 1972 Chevrolet Kingswood 454/7.4 V8
1970 - 1972 Chevrolet Kingswood 402/6.6 V8
1973 - 1975 Chevrolet Laguna 454/7.4 V8
1965 - 1967 Chevrolet Malibu 396/6.5 V8
1973 - 1980 Chevrolet C10 Suburban 454/7.4 V8
1990 Chevrolet C1500 Scottsdale 454/7.4 V8
1965 - 1967 Chevrolet Chevelle Base 396/6.5 V8
1965 - 1968 Chevrolet Chevelle SS 396/6.5 V8
1967 Chevrolet Chevelle Deluxe 396/6.5 V8
1967 - 1968 Chevrolet Chevelle Concours 396/6.5 V8
1968 Chevrolet Chevelle 300 396/6.5 V8
1968 Chevrolet Chevelle 300 Deluxe 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
1966 - 1970 Chevrolet El Camino 396/6.5 V8
1970 - 1972 Chevrolet Camaro SS 402/6.6 V8
1966 - 1969 Chevrolet Caprice 396/6.5 V8
1966 - 1969 Chevrolet Caprice 427/7 V8
1970 - 1972 Chevrolet Caprice 402/6.6 V8
1989 - 1991 Chevrolet V3500 454/7.4 V8
1993 GMC K2500 Suburban SLE 454/7.4 V8
1963 - 1
Shipping Notes
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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]
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SKU: 57843027759

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Jed Gillis
West Palm Beach, US
★★★★★ 5
Works well
Works well! Easy to fill.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
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True North Bee
Whiting, US
★★★★★ 5
Durability
I was very satisfied with the quality of another Best Choice Products: Ice Chest. So, I was happy to see the umbrella stand, weighted by water, was available by this company. It is, once again, made very resilient and strong to withstand tipping over. I'm a happy customer of this company's products!
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Reviewed in the United States on April 2, 2026
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Verified Purchase
Joyce Budai
Omaha, US
★★★★★ 5
Great design and easy to put together!
Color: Black - Square
Works very well and this is easily put together! I filled mine with water and it is more than heavy enough to withstand a strong gust of wind. Highly recommended!
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Reviewed in the United States on May 31, 2026
M
Verified Purchase
Maryland1
New York, US
★★★★★ 4
Nice base in general
Base seemed nice coming out of the box. Good size, though double check it will work for your needs as my mistake it was just a bit too big. Filled with water, it is a decent base to utilize with an umbrella I feel. Not sure if others' bases had this, too, but mine has some kind of object rolling around the side. No way to get it out. Not sure if when the hole is drilled into the top, it's from that? Also, when filling with water, there were unpleasant fumes coming out. Water mixing with the rubber material on the inside? All that said, for the price, this is a good option to consider for an umbrella base.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2025
S
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S. Ramsey
Pawtucket, US
★★★★★ 5
Great Stand!
Color: Black - Fluted
Awesome stand for the umbrella. Works well. Has kept the umbrella in place.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026

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