You will discover mainly two configurations on the 4A-G cylinder block with some slight versions Using the 5 vale versions. In all instances they have these qualities in frequent. The cylinder block about the 4A-G is made of cast iron alloy. You'll find 5 main bearings held with two bolts https://blacktop-20v-4age14577.shotblogs.com/helping-the-others-realize-the-advantages-of-4age-20v-40689884