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Blackheart Gen III Hemi Swap NAG1 Transmission Crossmember Hoop Fits Select 1973-1976 Dodge, Plymouth Models
InfoVehicle Info Needed
HOOKER HEADERSPART NUMBER: 520-BHS578

Blackheart Gen III Hemi Swap NAG1 Transmission Crossmember Hoop Fits Select 1973-1976 Dodge, Plymouth Models

$11995
ShippingShips on 11/03/2026
Lowest PriceLowest Price Guarantee

Mopar A-Body
Blackheart Gen III Hemi Swap Transmission Crossmember Hoop
  • 1973-1976 Mopar Models
    • Dodge Dart
    • Plymouth Duster, Scamp, Valiant
  • Required for NAG1 Transmission Installation
  • Use With BHS572 Crossmember
  • Provides Needed Clearance

    Breakdown of Included Items

    Hooker Blackheart Transmission Crossmember Hoop BHS578:

    • Requires Hooker BHS572 Transmission Crossmember (sold separately)
    • Requires Hooker BHS574 Transmission Crossmember Adapter (sold separately)
    • Use with Hooker BHS571 Engine Mounting Brackets (sold separately)
    • Use with GM style transmission mount JEGS 555-61820 or 555-61821 (sold separately) or equivalent
    • Compatible with Hooker BH23104 Shorty Headers

      • Transmission Crossmembers to Take the Guesswork Out of Your Engine or Transmission Swap

      Hooker Blackheart CAD-designed, powder-coated steel crossmembers provide a durable-strength foundation for transmission mounting; while leaving adequate clearance for a host of Hooker Blackheart engine and exhaust components.

    Part TypeAutomatic Transmission Crossmember
    Product LineHooker Blackheart Transmission Crossmembers
    BrandHOOKER HEADERS
    Package Height4.6
    Package Width12.3
    Package Length20.2
    Weight7.65 PG
    Part CategoryPerformance Parts
    Engine TypeChrysler Gen III Hemi
    Transmission Mount IncludedNo
    Body TypeMopar A-Body
    Crossmember FinishBlack
    QuantitySold individually
    Crossmember MaterialSteel
    Vendor Part NumberBHS578
    Package Qty1
    Package TypeEA
    Please click here to download the instructions PDF file

    Items You Need

    Blackheart Gen III Hemi Swap Transmission Crossmember Fits Select 1973-1976 Dodge, Plymouth Models

    HOOKER HEADERS

    Blackheart Gen III Hemi Swap Transmission Crossmember Fits Select 1973-1976 Dodge, Plymouth Models

    Part Number : 520-BHS572
    $23395
    Blackheart NAG1 Transmission Crossmember Adapter Bracket for Select 1973-1976 Dodge, Plymouth Models [Gen III Hemi Swap]

    HOOKER HEADERS

    Blackheart NAG1 Transmission Crossmember Adapter Bracket for Select 1973-1976 Dodge, Plymouth Models [Gen III Hemi Swap]

    Part Number : 520-BHS574
    $4995
    Blackheart Gen III Hemi Swap Engine Mount Brackets for Select 1973-1976 Dodge, Plymouth Models

    HOOKER HEADERS

    Blackheart Gen III Hemi Swap Engine Mount Brackets for Select 1973-1976 Dodge, Plymouth Models

    Part Number : 520-BHS571
    $29995
    GM Urethane Transmission Mount Fits most GM Transmissions

    JEGS

    GM Urethane Transmission Mount Fits most GM Transmissions

    Part Number : 555-61820
    $4299$47.99
    You Save$5.00
    Urethane Transmission Mount Fits Most GM Transmissions

    JEGS

    Urethane Transmission Mount Fits Most GM Transmissions

    Part Number : 555-61821
    $4299$47.99
    You Save$5.00
    Blackheart Gen III Hemi Swap Shorty Headers Fits Select 1973-1976 Dodge, Plymouth Models

    HOOKER HEADERS

    Blackheart Gen III Hemi Swap Shorty Headers Fits Select 1973-1976 Dodge, Plymouth Models

    Part Number : 520-BH23104
    $84995
    302-60 Engine Swap Oil Pan Kit for 2003-2008 Gen III 5.7L, 2005-2010 6.1L, & 2007-2010 392 Crate Hemi Engines [Non-VVT]

    HOLLEY

    302-60 Engine Swap Oil Pan Kit for 2003-2008 Gen III 5.7L, 2005-2010 6.1L, & 2007-2010 392 Crate Hemi Engines [Non-VVT]

    Part Number : 510-302-60
    $57195
    302-61 Engine Swap Oil Pan Kit for Gen III 5.7L & 6.4L [VVT]

    HOLLEY

    302-61 Engine Swap Oil Pan Kit for Gen III 5.7L & 6.4L [VVT]

    Part Number : 510-302-61
    $51995
    1-Ton Automotive Shop Crane [Boom Operating Range: 34 in. to 45 in.]

    JEGS

    1-Ton Automotive Shop Crane [Boom Operating Range: 34 in. to 45 in.]

    Part Number : 555-81044K
    $23698
    Engine Load Leveler [1,000 lb.]

    JEGS

    Engine Load Leveler [1,000 lb.]

    Part Number : 555-80048
    $5999$65.99
    You Save$6.00
    Engine Lifting Chain 34"

    JEGS

    Engine Lifting Chain 34"

    Part Number : 555-80049
    $1399$15.99
    You Save$2.00
    Engine Sling [1000 lb. Capacity]

    JEGS

    Engine Sling [1000 lb. Capacity]

    Part Number : 555-81378
    $10299$113.99
    You Save$11.00
    Engine Stand [1000 lb. Capacity]

    JEGS

    Engine Stand [1000 lb. Capacity]

    Part Number : 555-80040
    $9999$109.99
    You Save$10.00
    Thread Sealing Tape 1/2 in. x 43 ft.

    JEGS

    Thread Sealing Tape 1/2 in. x 43 ft.

    Part Number : 555-75055
    $319$3.99
    You Save$0.80
    Thread Sealant 1/2 oz Tube

    JEGS

    Thread Sealant 1/2 oz Tube

    Part Number : 555-28011
    $539$5.99
    You Save$0.60
    Penetrating Oil [11 oz. Aerosol Can]

    LUCAS OIL

    Penetrating Oil [11 oz. Aerosol Can]

    Part Number : 639-11043
    $878$9.49
    You Save$0.71
    Brake and Parts Cleaner [14 oz. Aerosol Can]

    JEGS

    Brake and Parts Cleaner [14 oz. Aerosol Can]

    Part Number : 555-72312
    $699$7.99
    You Save$1.00
    Blue Bolt Locker Medium Strength

    JEGS

    Blue Bolt Locker Medium Strength

    Part Number : 555-28084
    $699$7.99
    You Save$1.00
    Gasgacinch 8 oz

    JEGS

    Gasgacinch 8 oz

    Part Number : 555-440-B
    $1569$17.09
    You Save$1.40
    Funnel [8.5 in. Overall Length]

    JEGS

    Funnel [8.5 in. Overall Length]

    Part Number : 555-W4064
    $599$6.99
    You Save$1.00
    3-Ton Aluminum Floor Jack [6,000 lbs. Capacity]

    JEGS

    3-Ton Aluminum Floor Jack [6,000 lbs. Capacity]

    Part Number : 555-80077
    $25999$285.99
    You Save$26.00
    Some parts are not legal for use in California or other states with similar laws / regulations
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