Hey guys, im a new member but ive been lurking a ehile and used yalls information alot. Im hoping yall can help me. A little back story, I have a 92 sierra 1500 that ive had for like 10 years and it has tite at 400000 miles on it. My daughter has said that she would like me to pass it to her. Its getting a little tires, so im building a motor for it and am just gonna do the swap once the motor is built. I bought a 350 on the cheap knowing i was gonna rebuild it. Im taking it to the machine shop to get it cleaned and bored 30 over on monday. The machine shop has a swap option for heads, but they have to be buildable... The ones that ate on this motor are not considered that, too much rust and pitting. My question is, i checked the casting numbers and they are 1402193 heads, and my current motor (305) also has 1402193 heads. The only info i can find is that those heads were used on both 350/305, so im wondering if they are the same. I ask because those are relatively fresh heads (i did the exchange about 5000 miles ago) and if i can just use those, that will save me some money to put towards other stuff for the conversion to 350 and to make the truck a little nicer for her. Any help or input would be appreciated. Thanks