Originally Posted by jwb123
back when I was in high school, 1974, my first mopar was a 1970 340 4 speed dart. I had a buddy that had a 71 340 automatic duster and his brother had a 1972 duster with a 360 4 speed, we drag raced on HwyY just outside of town and I could always beat the 340 auto by a car length, the 360 duster just depended on what side of the road I got, we were neck and neck. I currently have a 69 cuda with a 408 stoked 360 with a procharger, 4 speed and man is it fun to drive. Have built several of the 360/408 engines for others and they all really like them. With the reasonable stroker kits today, a 350 or 340 is really a mute point, unless you are restoring for numbers correct vehicles.

I have seen so many dead stock 340 Darts go head to head with 360 Darts and it was always so close, mostly driver. From my observation, the 340 cars would 60 foot the 360 cars but the 360 cars had more MPH in the top end.

But I bet if your buddy with the 340 Auto had yanked that A727 and put in a good shift kit'ed A904 it would have been a whole different outcome. wink

With no other changes, my 1979 Cop car 360 E58 in a 66 Dart Wagon with the A727 that came with the engine, the A727 was going south so I put my TransGo shift kitted 1978 LeBarron A904 in it with just the trans and driveshft changes and that Dart wagon came alive.

Retired, US ARMY 1973-1994
ASE mechanic, Electrical 1994-1997
Retired GTE/VERIZON/FRONTIER 1997-2015


Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.

03 Suzuki Burgman 650(Burger King) Scooter
65 Formula S Cuda
78 Little Red Express Truck
98 Buick Regal (wifes car)