im looking at a set of heads and there is a 220 dollor difference between these 2 diff part numbers??
for265n 800
for266 580
the casting numbers are the same 030ci, c3 but the weights are different the 265n is heavier. they are so post to be rebuilt heads with warranty

 

Where are you getting the heads from..........

 

Automotive Cylinder Heads

i havent called them yet but our heads cant be resurfaced right?