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Message: <blockquote data-quote="jo-e34" data-source="post: 375207" data-attributes="member: 1020">yea.....its so claimed that the older versions 1jz cyclinder head flows better than the 2jz and proven on dyno as well......the torque of a combined 1.5j is higher than the 2jz,but the 2jz can take more pounding....than the 1jz.....in stock from........maybe because of the different design of pistons...... and there are some saying that the 1jz vvti head with a 3.0 bottom the rating is higher than the 1.5j.....close to.....40kg.....when dynoed......well i havent seen this with my own eyez b4.......so i wouldnt really know how true this is......any source to this.....? anyone....?</blockquote>