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Dodge Challenger 1970-1974

1970 Dodge Challenger

Year Total Produced

Engine availability in cubic inches/Horsepower

1970 83,032 198six/125hp, 225/145hp, 318V-8/230hp, 340/275-290hp, 383/290hp, 426/425hp (Can you believe what this Street Hemi could do?), 440/350hp (Are five V-8 engines enough to choose from?)
1971 29,883 198six/125hp, 225/145hp, 318V-8/230hp, 340/275hp, 383/275hp, 426/425hp, 440/370hp
1972 26,658  225six/110nhp, 318V-8/150nhp, 340/240nhp, 360/175nhp, 440/280nhp, 440/330nhp: This 330 net horsepower was achieved using three Holley two-barrels!
1973 32,596 225six/105nhp, 318V-8/150nhp, 340/240nhp, 360/170nhp,440/280nhp
1974 16,437  225six/105nhp, 318V-8/150nhp, 360/200-245nhp 440/275nhp
Note: Starting in 1972, the "net" horsepower rating system went into effect and meant that the motors were tested with all their equipment attached, which resulted in lower horsepower numbers, making them appear to have less power than they actually had.  The auto makers had to start lowering compression ratios in 1971 and this resulted in some horsepower loss, but it wasn't until 1975 that muscle cars were dealt their final blow.  Compression was lowered even more to allow cars to run on unleaded fuel.  Big block engines became extinct, and the smaller engines were so underpowered it was pathetic. 
 
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