I am not knowledgable mechanically so forgive me in advance. I have a 72 demon with a 340 block 69 and 360 heads with a purple cam 282/482. The 360 heads are 1.88 intake 1.62 exhaust.
I have a complete set of X heads with 2.02 intake and 1.60 exhaust...
this is a 4spd street car with a weiand dual plane intake and 2.25 stock exhaust manifolds. 355 rear sure grip.
Will I have any noticeable power/torque swapping the heads?
Port the X heads and intake, swap them onto the engine and at the same time add a set of good headers .
Make dam sure your head work is done by a reputable machinist that knows Mopar heads.
You will notice a difference with a little tuning.
Nice ride
Good luck
