Quote:

Thanks, your probably right that they will work fine since I'm not building a race car here.I'm not seeing any pollution pump holes on these heads like later model 360 heads. My 340 is a 1973 and the heads look to be original with the motor, this motor is in my 71 road runner and looks to have been with the car for many years now, but needs a rebuild. I just want it to perform as well as a stock 71 340 does. I know that I will need higher compression pistons. Any more opinions?



Can anyone tell me what those small holes below the regular exhaust ports are for on the 78 360 heads, do they have to be filled with jb weld? can i do it with the motor already installed in the car? I just noticed those after putting on a set of 340 hi-po manifolds, the regular 360 manifolds covered the holes.