Have Questions?
Hooker BHS574 Blackheart NAG1 Transmission Adapter Plate
Guaranteed Fitment
Always the correct part
Added Value
Performance matched parts
In-House Experts
We know our products
Nationwide Delivery
Economy shipping
Body, Exterior & Accessories ❯
Brakes ❯
Tools, Hardware & Consumables ❯
Towing, Trailer & Truck Accessories ❯
Always the correct part
Performance matched parts
We know our products
Economy shipping
Get that Gen III Hemi swap started the right way, by using a fully engineered engine & transmission mounting system that provides maximum component clearances, ideal drivetrain geometry, and clearance for Hooker BlackHeart swap headers & 3.00 in." exhaust system. This transmission adapter bracket works with the modular crossmember BHS572 to fit the NAG1 automatic transmission. This design allows future transmission changes by swapping out only the transmission adapter bracket instead of replacing the whole crossmember. The crossmember (available separately) and this adapter bracket works with engine mounting brackets (available separately) for optimal engine placement to allow Short Runner Valve Clearance (eliminates modifications to the firewall & brake booster). Hooker BlackHeart swap headers & exhaust systems (available separately) are designed as part of the swap system & provide clearance with all of the transmission options.
Description_ASC | Use with Engine Mounting Brackets BHS571, Transmission Crossmember bHS572, and Polyurethane Transmission Mount 71223029HKR (Black), or 71223030HKR (Red). NAG1 Transmissions also requires BHS578 - Transmission Tunnel Hoop (Provides Additional Support for Transmission Tunnel and torsion bar crossmember) Transmission tunnel and Torsion bar support modifications are required to install BHS578 Transmission Tunnel Hoop support. Use with Drivers Side Mounted Starter on NAG1 transmission - to Avoid Clearance Issues with the Factory Steering System. |
Description_DEF | Transmission Crossmember Bracket |
Description_DES | Hooker Blackheart NAG1 Transmission Adapter Plate |
Description_EXT | Transmission Crossmember Adapter; Fits w/1973-1976 Mopar A-Body Gen III Hemi Swap NAG1 Transmission; |
Description_INV | GEN III HEMI A BODY NAG1 TRANS ADAPTER |
Description_SHO | TransXmbrBk |
Description_KEY | Dodge Dart; Dodge Scamp; Plymouth Valiant; Plymouth Duster; Dart; Duster; Valiant; Scamp |
Description_FAB | Transmission Adapter Accommodates Popular NAG1 Automatic Transmissions |
Description_FAB | Use with Crossmember BHS572 (sold separately) and Transmission Tunnel Hoop BHS578 |
Description_FAB | Uses with GM Style Transmission Mount - Hooker Part# 71223029HKR or 71223030HKR (Sold Separately) |
Description_FAB | Modular Design with Bolt-on Transmission Adapter Allows Future Transmission Swaps without Replacing the Crossmember |
Description_FAB | Welded Steel Construction w/ Black Coating for Great Looks and Durability |
Description_FAB | Heavy Duty 3/16" Steel Construction - for Strength & Durability |
Description_FAB | Includes Mounting Bolts & Instructions |
Description_MKT | Get that Gen III Hemi swap started the right way, by using a fully engineered engine & transmission mounting system that provides maximum component clearances, ideal drivetrain geometry, and clearance for Hooker BlackHeart swap headers & 3.00 in." exhaust system. This transmission adapter bracket works with the modular crossmember BHS572 to fit the NAG1 automatic transmission. This design allows future transmission changes by swapping out only the transmission adapter bracket instead of replacing the whole crossmember. The crossmember (available separately) and this adapter bracket works with engine mounting brackets (available separately) for optimal engine placement to allow Short Runner Valve Clearance (eliminates modifications to the firewall & brake booster). Hooker BlackHeart swap headers & exhaust systems (available separately) are designed as part of the swap system & provide clearance with all of the transmission options. |
Warning | California Proposition 65 |
WARNING CA Proposition 65 Message | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
Transmission | NAG1 |
WARNING CA Proposition 65 | Yes |
Brand | Hooker BlackHeart |
Color | Black |
Emission Code | 6 |
Product Type | Transmission Mount |
Type of Component | Transmission Mount |
Application | 1973-1976 Mopar A-Body |
Finish | Black Coated |
Material | Steel |
Motor Type | Chrysler Gen III Hemi |
Length | 5.0000 |
Width | 6.0000 |
Height | 8.0000 |
Weight | 3.0000 |
Adding product to your cart
Ship To Your Home or Pick Up In Store
Cash, Debit, Credit, PayPal, and Financing
Shop With Confidence
Get the Help You Need
Solid hitch with serious strength and clean powder coat, heavy to lift, but installs easy and tows perfectly!!
Shipping was quick and on time - exactly what I needed for my small-block build - would buy again for sure
Weatherbeater mats fit my work truck perfectly. Dropped them in and nothing moves. Truly a great upgrade
Window visors look incredible and feel durable, install was simple. Zero wind noise on the highway!
Leveling kit components were well packed. Instructions lacking, but online videos helped. Rides level now and feels planted.
Found single lifter pairs in stock here when others required full sets, fast shipping got me racing again, hell yeah!!
Rear bumper upgrade looks better than factory plastic. Install was easy, and functionality is miles ahead. Highly recommended.
Tonneau cover fit is excellent. Clear instructions and a smooth install. Delivery to my door was super convenient
Turbo arrived next morning and matched description. Bolted up cleanly and truck is back to full power.
Husband’s birthday grille guard is rock solid, looks sharp he loves it so much!!! Thanks again
Customer service handled a damaged shipment immediately. Refund was painless. I’ll shop here again.
Exhaust system installed in two hours on my first try. Perfect fit and the sound is pure joy.
Need help? We're available at (877) 743-7862 or email us at: sales@shdp.ca
Ship To Your Home or Pick Up In Store
Cash, Debit, Credit, PayPal, and Financing
Shop With Confidence
Get the Help You Need