Holley EFI Dual Sync BBC Tall Deck Distributor, Black - 565-204BK
Holley EFI Dual Sync BBC Tall Deck Distributor, Black - 565-204BK
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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 |

Policies and FAQs
Return Policy
Fault reasons include but are not limited to:
- Buyer was shipped the wrong product
- Buyer was shipped a damaged product
- The product page had incorrect fitment and the part does not fit the Buyer's vehicle
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FAQs
|Q. What is an Intermediate Brake Line?
|A. This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.
|Q. What is included in a pre bent brake line kit?
|A. Our kits include all of the solid metal lines for that section of the vehicle
|Q. I need to return something - what's your return policy?
|A. We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.
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Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
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If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.