305 to 350

[1986k10]

What needs to be done to make a 305 into a 350 if it can be done

 

[sschevystepside]

Cant be done you would have to change heads pistons bore the 305 block to accommodate the 350 pistons witch is like a 1/4" bigger not going to happen and many other various thing that will set you back lots of time and money.
Your ten times further ahead going and finding a 350 for sale there pretty dam cheap i bought mine for 100 buck with all the component and its still standard bore. That I will later turn into a 383 Stroker.