Yes they were,bought the truck from a young kid so who knows what kind of abuse/ overheating maybe it went thru, im new to the gen 3 hemi engines, just learning any weak points myself reading forums, other peoples issues with them,their our new wave of hi performance power plants for sure,

86 Daytona - 612/ glide - 2400lbs - 8.60 alot more left
71 S/G Challenger - 469/glide - 2800lbs - 9.20s and tuning
70 Challenger - mild 440/727 - 3475lbs - 10.96 best
70 GTX - future quick 16? more $$$$$$