No, it is not the original tranny or motor. It was a /6 converted to 318 police interceptor/999 tranny. The 75cc police heads were removed and replaced with 340 j heads, with the resultant increase in compression from the smaller chambers, and then an intake and carb by edelbrock, and electronic ignition. I learned tonight that the 999 has a 2:70 something first gear and a lock-up converter(!), and is indeed beefier, for medium horsepower applications. 5 disc clutch-pack, and performance shifting. I was pleased to learn that the pistons in the interceptor were flattop, with the 75cc heads they had 8.8:1 and now with the j heads I am easily into 9.25:1 or better. I chose a great cam for a 360 I have and have been tearing down to build, but I may just slide it into this 318, and see what happens! This cuda also has the large bolt/disc brake conversion done, and highway gears, but with the low first gear I should still get a decent launch, I will let you know tomorrow! I will be driving the car for the first time in the am!!! Happiness is a barracuda bite pattern! And I definitely have the fever...I have some 596 heads for sale, and a few misc 360 parts, so I can start to save for eddies, I am sold on edelbrock heads, my buddy got them on his belvedere's 360 that he swapped in. I rode in that car when it had smog heads, and then when he got the eddies, and there was no other change made to the motor and the difference was astonishing. I can attest to the fact that those heads are superior to my 596's for sure and probably the 915's too. what do you think? Plus they just look coooool!