You will discover fundamentally two configurations on the 4A-G cylinder block with some slight versions Using the 5 vale variations. In all scenarios they've these characteristics in typical. The cylinder block around the 4A-G is crafted from cast iron alloy. You will find 5 main bearings held with two bolts https://4age-20v-blacktop46653.targetblogs.com/27252677/a-review-of-4age-20v-itb