#893, "RE: Are intake manifolds interchangeable?" In response to In response to 3
You have to remeber that 1g and 2g 4g63's have very few differences with the motors, so everything bolts up. The difference is that the 1g has a bigger throttlebody, and has bigger ports on the intake and head, so it will flow more. The exhaust manifolds are identical, except the 2g is less prone to cracks. There are other differences as well, but for the most part everything is interchangeable.
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