You will find mainly two configurations on the 4A-G cylinder block with a few insignificant versions Using the 5 vale variations. In all conditions they've these qualities in prevalent. The cylinder block around the 4A-G is made from Solid iron alloy. There are 5 major bearings held with two bolts https://deanegiig.blogsuperapp.com/27246651/toyota-4age-for-sale-options