Fits: Mopar A-Body

  • 1973-1976 Dodge Dart
  • 1973-1976 Plymouth Duster, Scamp, and Valiant

Step 1: Engine & Transmission Mounts

  • Get that Gen III Hemi Engine Mounted in your 1973-1976 Dodge Dart or Plymouth Duster, Scamp, or Valiant (Mopar A-Body)
  • Engine Location Optimized to Eliminate Firewall Modifications
  • Modular Transmission Crossmember works with A727, TKX Transmissions - (NAG1 Coming Soon)
  • Order Transmission Adapter to Fit Desired Transmission
  • TKX & NAG1 Use Transmission Tunnel Brace (Different Part for Each Transmission)
Shop Engine and Transmission Mounts

Step 2: Oil Pans

  • The Factory Oil Pans on Gen III Hemi Engines Don’t Fit or Hang too Low for Muscle Car Engine Swaps
  • Cast Aluminum or Fabricated Steel Mid-Sump Engine Swap Oil Pan
  • Cast Oil Pan Kit That Includes Oil Pan, Pickup Assembly, O-Ring Seal, Windage Tray, Baffling & Mounting Bolts – No Extras That Must be Purchased Separately (i.e. gaskets, pickup, windage tray, bolts)
  • Cast Pans Feature Integrated Windage Tray & Baffle to Control Oil (Fits up to 4.060” Stroke)
Shop Oil Pans

Step 3: Headers

  • Swap Headers work Together with the Motor Mounts & Crossmember for An Easy Engine Swap
  • 304 Stainless Steel Construction
  • 1-7/8" Primary Tubes with 2.5" Collectors
  • Headers Clear Starter (Left & Right Hand Side Starters) and Brake Booster
  • Headers Work with Power Steering - When Used with Borgeson Steering Box and Hardline Kit 198-231
Shop Headers

Step 4: Exhaust Systems

  • 2.5-inch Dual Exhaust System for Mopar A-Body
  • 304 Stainless Steel Construction
  • Choose from Exhaust Systems for 108-inch or 111-inch Wheelbase Length
  • Optional Polished Stainless Tips - Available Separately - Part # BHC304
  • Moderate to Aggressive Sound
Shop Exhaust Systems

Step 5: Fuel Tanks

  • Complete EFI Fuel Tanks with In-Tank Fuel Pump & Fuel Gauge Sending Unit
  • Eliminate Rust with New Tank & Upgrade for EFI Applications
  • Coated Steel Construction
  • EFI Fuel Pump Modules - Also Available Separately - Fits Inside Stock Tank
Shop Fuel Tanks

Step 6: Drivetrain

  • Tremec TKX & A727 Transmissions Available
  • Special Flex Plate Adapts A727, A904, A500 & A518 (46RH/46RE) Transmissions (small block) & Torque Converter to Gen III Hemi Engine
  • Stamped Steel Dished Flex-Plate Fits 8-Bolt Crankshaft on Gen III Hemi Engine
Shop Drivetrain

Step 7: Swap Accessories

  • Oil Filter Relocation Kit or Mopar 45 Degree Oil Filter Adapter Allows Extra Clearance for Gen III Hemi Swap in the A-Body
  • Power Steering Hardline Kit Protects Power Steering Hoses From Header Heat & Allows for Easier Access to Fittings - Use with Borgeson Power Steering Box & BH23104 Headers
  • Tunnel Patch Is Designed for Use with TKX Transmission
Shop Swap Accessories

Step 8: Accessory Drive

  • Mid-Mount Accessory Drive Systems Pull the Accessories in Tight for Extra Clearance & Reduce Power Steering Pressure to Avoid Damage to the Steering Box
  • Factory Car Accessory Drive Systems Can be Modified with Alternator Relocation Kits (for extra Clearance) and Power Steering Kits to Reduce Power Steering Pressure (to Avoid Damage to Steering Box)
  • Fits Gen III Hemi 5.7L, 6.1L, and 6.4L Engines
Shop Mopar Gen III Hemi

Step 9: Terminator X & X Max

  • Plug & Play Gen III Hemi Engine Control
  • Works with Holley Accessories - Analog Gauges, Shift Light, Pro Dash
  • EV1 or EV6 Injector Drivers
  • 3.5" Touch Screen Handheld w/ Internal Data Logging & Calibration Wizard
  • Free EFI Tuning Software
Shop Terminator X and X Max GEN III HEMI Kits
  • In Stock
  • Earl's
  • Hays
  • Holley
  • Holley Kits
  • Holley Sniper EFI
  • Hooker BlackHeart
  • Hurst
  • Mopar
  • Quick Time
  • Sniper
  • Tremec
  • White Box
Product Type
  • Adapter/Extension
  • Bellhousing
  • Dipsticks and Oil Accessories
  • Engine and Transmission Support
  • Engine Mounts
  • Exhaust System
  • Exhaust Tip
  • Flexplates
  • Floor Pan Patch Panel
  • Fuel Pump Module
  • Fuel Tank
  • Headers
  • Manifold
  • Manual Transmission
  • Oil Filter Adapter
  • Oil Filter Relocation Kit
  • Oil Pan Kit
  • Transmission Crossmember
  • Transmission Crossmember Support
  • Transmission Mount
  • Virtual Kit
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    1973-1976 A-Body Gen III Hemi Swap System

    Comprehensive Gen III Hemi Conversion kits for your Mopar A-Body (1973-1976 with Spool Style Mounts - Vehicles that Came from the Factory with a V8 Engine). Holley has all the parts needed to make your swap successful (i.e. engine mounts, crossmember, oil pan, headers, exhaust system, accessory drive, fuel tank, and engine management system). The 1973-1976 Mopar A-Body includes the Dodge Dart, and Plymouth Duster, Scamp, and Valiant.