Question: why are 2jz engines so popular?
Answer: Papadakis also points out that the 2JZ is a closed-deck engine, which means the cylinders themselves are quite strong. This is why the 2JZ-GTE can handle a ton of turbo boost pressure. ... The 2JZ-GTE also benefits from a well-designed three-layer steel head gasket that can withstand high boost pressure without blowing.