Originally Posted by
slowmoving1
I had to find a magnet to check. they are aluminum.
wonder why they changed?
so does this mean we have gen 2 block's?
Not sure, a guy that is selling them on the corral was saying his are 1st generation and come with steel freeze plugs, and the 2nd came with aluminum. I thought the 2nd generation came with a 4.125 bore, Oh well good luck on you're build.