You'll find in essence two configurations over the 4A-G cylinder block with some minor variations Along with the five vale versions. In all situations they've these features in widespread. The cylinder block on the 4A-G is manufactured from Forged iron alloy. You'll find five main bearings held with two bolts https://traviswyltc.thezenweb.com/5-simple-techniques-for-4age-engine-sale-64426709