Linked:toyota 4age enginetoyota 4age 16v engine4age 20v engine4age 16v ingestion manifold4age 16v partsBlock: The 4AG block is actually a free revving and powerful base end. A inventory block will endure in surplus of 350 HP if air-charged in the 8000 RPM variety, or 250 HP in the 10000RPM range. The 2nd technology blocks with oil squirters must be