are these some good heads for a mild 351w World Products Roush 200cc Cast Iron i know everybody is going to say go with aluminum heads but i dont want to spend the extra money so would these be a decent head and would they work on a stock short block if not what heads would

 

They are good heads, but for the 4-5 hundred dollars per head you will be spending for them, you could spend a few more bucks and get some aluminum heads. http://www.jegs.com/webapp/wcs/store...0187&langId=-1

 

will there be anyproblems putting them on stock short block are will there be clearance problem

 

Those heads have stock port locations, so there should be no problem.