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Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup
Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup
Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup
Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup
Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup
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Load image into Gallery viewer, Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup
Load image into Gallery viewer, Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup
Load image into Gallery viewer, Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup
Load image into Gallery viewer, Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup
Load image into Gallery viewer, Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup

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Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup

⚠️ Please verify fitment before purchasing. Check the fitment chart below or use the Year/Make/Model tool to confirm this part fits your vehicle.

⚠️ Verify fitment before purchasing. Check the fitment chart below or click the 3 lines in the top left menu, select Home, then use the Year/Make/Model guide.

Trans-Dapt Performance
42052
Out of stock
$2,186.36 USD $1,815.99 USD
Trans-Dapt Performance SWAP IN A BOX KIT Into Auto Trans- HTC Headers 42052 fits 1973 1974 Chevrolet C10 Pickup / 1973 1974 Chevrolet C10 Suburban / 1973 1974 Chevrolet C20 Pickup / 1973 1974 Chevrolet C20 Suburban / 1973 1974 GMC C15/c1500 Pickup
Description

Each member company of the Hedman Performance Group is a specialist in the field they serve. Hedman hedders specializes in headers, Trans-Dapt Engine/transmission swap mounts, and Hamburger's focuses on oil pans. Working together, the HP Group companies join as one to develop comprehensive kits that include everything you'll need to safely, and properly, fasten the donor LS engine to the Chevy truck chassis. Sold as a single part number, purchasing complete engine swap kit ensures the products have been developed to work with each other, and takes the guesswork out of choosing swap products.

This Swap-In-A-Box Kit is developed specifically for installing an LS engine and automatic transmission into 1973-87 Chevy/GMC C10/C15 and C20/C25 Pickup Trucks and Suburbans (2WD). This kit is not for 4WD truck or Blazer applications. This comprehensive kit includes a pair of mild steel, polished silver ceramic-coated Mid-Length headers with gaskets, bolts and exhaust adapters, a complete engine mount kit with hardware and rubber pads, LS swap engine oil pan with bolts, gaskets and special pick-up tube, and a transmission crossmember for use with a 4L60E, 4L70E, 4L80E, 4L85E, 6L85E and 6L90E automatic transmission.

Complete C10/C20 Engine Swap In A Box Kits with Hedman's Black-Maxx satin black ceramic-coated, or uncoated headers are also available.

Headers are backed by a limited lifetime warranty. All other components are covered for a full year from the date of purchase.


This Part Fits:

Year Make Model Submodel Notes
1973 Chevrolet C10 Pickup Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
1974 Chevrolet C10 Pickup Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
1973 Chevrolet C10 Suburban Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
1974 Chevrolet C10 Suburban Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
1973 Chevrolet C20 Pickup Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
1974 Chevrolet C20 Pickup Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
1973 Chevrolet C20 Suburban Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
1974 Chevrolet C20 Suburban Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
1973 GMC C15/C1500 Pickup Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
1974 GMC C15/C1500 Pickup Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
1973 GMC C15/C1500 Suburban Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
1974 GMC C15/C1500 Suburban Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.,Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (25) Engine swap, all parts must be factory stock.; Footnotes: (45) Not legal for sale or use in California on pollution controlled motor vehicles.; Drivetrain: 2WD Models Only!; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.


Specifications:

Description_DES SWAP IN A BOX KIT-LS INTO '73-87 GM 2WD TRUCKS, AUTO TRANS- HTC HEADERS
Description_EXT Engine Swap-In-A-Box Kit; Installs LS Engine In 1973-87 Chevy/GMC 2WD 1/2-3/4 Ton Trucks, Suburbans (Not For Blazer), AUTOMATIC Transmission; Standard-Duty, Mild Steel, 1-3/4 in., MID-LENGTH Headers- HTC Polished Silver Coated Headers
Description_SHO ENGINE SWAP IN A BOX
Description_ASM 1975-1980 Chevrolet C10 4.8 Liter, 1973-1974 Chevrolet C10 Pickup 4.8 Liter, 1973-1974 Chevrolet C10 Suburban 4.8 Liter, 1975-1986 Chevrolet C20 4.8 Liter, 1973-1974 Chevrolet C20 Pickup 4.8 Liter, 1973-1982 Chevrolet C20 Suburban 4.8 Liter, 1975-1978 GMC C15 4.8 Liter, 1973-1974 GMC C15/C1500 Pickup 4.8 Liter, 1973-1974 GMC C15/C1500 Suburban 4.8 Liter
Description_INV TRANS-DAPT LS ENGINE SWAP IN A BOX KIT
Description_MKT

Each member company of the Hedman Performance Group is a specialist in the field they serve. Hedman hedders specializes in headers, Trans-Dapt Engine/transmission swap mounts, and Hamburger's focuses on oil pans. Working together, the HP Group companies join as one to develop comprehensive kits that include everything you'll need to safely, and properly, fasten the donor LS engine to the Chevy truck chassis. Sold as a single part number, purchasing complete engine swap kit ensures the products have been developed to work with each other, and takes the guesswork out of choosing swap products.

This Swap-In-A-Box Kit is developed specifically for installing an LS engine and automatic transmission into 1973-87 Chevy/GMC C10/C15 and C20/C25 Pickup Trucks and Suburbans (2WD). This kit is not for 4WD truck or Blazer applications. This comprehensive kit includes a pair of mild steel, polished silver ceramic-coated Mid-Length headers with gaskets, bolts and exhaust adapters, a complete engine mount kit with hardware and rubber pads, LS swap engine oil pan with bolts, gaskets and special pick-up tube, and a transmission crossmember for use with a 4L60E, 4L70E, 4L80E, 4L85E, 6L85E and 6L90E automatic transmission.

Complete C10/C20 Engine Swap In A Box Kits with Hedman's Black-Maxx satin black ceramic-coated, or uncoated headers are also available.

Headers are backed by a limited lifetime warranty. All other components are covered for a full year from the date of purchase.
Description_DEF Engine Retrofit Kit
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