[johnny72]

I am gathering all the parts to do a dod delete on my 2007.5 Silverado. I am looking at two different cams GM12638427 and GM12625437 anybody use either of these? The first one is listed as a three bolt but I could not anything on the second. The truck has 164,000 miles not looking to build a racer just sick of the constant ticking. I did try searching but could not find anything about stock cams. TIA