Story
The 1970 Dodge Dart Swinger 340 is the compact Dodge A-body performance hardtop that carried the 340 four-barrel torch after the Dart GTS and big-block Dart paths faded. This page treats the public target as the factory 1970 Dart Swinger 340 two-door hardtop, not a base Swinger, 318 swap, 1969 Dart GTS 340/383/440, 1971 Demon 340, Plymouth Duster 340, or later Dart Sport 340.
The reviewed boundary is the 1970 model year, LM23 Swinger hardtop body identity, H-code/E55 340 cubic-inch four-barrel LA V8, and Swinger 340 equipment. Reviewed references agree on the 275-gross-horsepower 340, 340 lb-ft torque, 10.5:1 compression, front disc brake context, Rallye suspension, 3.23 rear-axle context, wide-rim wheels, wide-tread tire context, functional hood scoops with 340 emblems, and bumblebee-stripe presentation. Transmissions and axle ratios must be decoded per car, because restored examples often mix factory, dealer, and owner changes.
Production and pricing are recorded as reported, with the 13,785 Swinger 340 series count and $2,808 base-price row treated as source-backed reference data rather than individual-car proof. Individual originality still needs the VIN/body identity, fender tag, broadcast sheet or comparable paperwork, E55 engine evidence, transmission and axle records, paint and trim codes, and photographs that match the decoded build. The gallery uses exact-year Dart Swinger Commons images where available, embeds directly relevant Swinger 340 videos, and uses source-card visuals for engine, drivetrain, chassis, literature, and authenticity topics that should not be faked with unrelated component photos.