boring my 318

Just a little “real world” experience you may be interested in. I had a 318 with ported J heads and a MP 284/.484 cam in my Barracuda years ago. I was told by a local Mopar “expert” that the 302 head was the way to go for even better performance…so I bought a set of 302’s and gave them a shot (nothing else was changed). The daily driver feel was much better with a definite increase in low end torque, but the high RPM horse power was just not there. I took the car the track and found that the 302’s made the car slow down by 6 tenths and 4 MPH in the quarter mile! After realizing that I just spent 500 bucks to slow my car down, I promptly removed the 302’s, and sold them to someone that was rebuilding a truck motor.

Just something to think about if you plan on going for more than just “daily driver” performance.