smallport vs bigport pistons 4AGE 16v
In this video I show you the differences between the 4AGE 16V bigport and smallport pistons. The most obvious difference of course being the piston dome and cutouts for the oil cooler jets that can be found on the smallport pistons. There are also differences in the ring grooves and some other minor stuff. bigport compression ratio - 9.4:1 smallport compression ratio - 10.3:1 For more 4AGE and MR2 mk1 fun check out my blog: http://www.driving4answers.com/
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