here this is the issue i am having i am building a car for dependability but at the same time be able to drag race it all day and not break like alot of people at the drag strip that i have seen. what i want to know is which one is more dependable aluminum or cast iron cylinder heads. i have heard the aluminum flows better and it is easier to weld and so on but i have a pair of cast iron gt40 heads and and a pair of aluminum gt40 heads what i want to know is which one is more likely to break thank you for your time.
makrf-250