i have a 2000 mr-s and its just failed its mot because its burning oil and wouldn't go through the emissions.
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I know the culprit and what i wanted to ask is, is it possible to swap the 1zz block for a 2zz
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BenF wrote:No- the oil passages will not line up.
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The engines are different designs, with other differences including different bore and stroke ratios, and the 2zz having a lightened bottom end to help with the higher redline.
BenF wrote:The 2zz head and block are different overall dimensions to the 1zz, eg 2zz block has an additional oil channel to work the VVTI not present on the 1zz.
For the 2ZZ HG in your 1ZZ- interesting
- did you check a 1zz HG against a 2ZZ HG to see what lined up?