will an 03 yz450 work with a 02 yz426 stuff?

will the cdi, wiring harness, headpipe, etc. from a 02 yz426 work with a 03 yz450 engine? could the 03 be bolted into a 02 frame? is it a direct swap?

Don't think so. Even if the other hard points on the engine line up, the rear one is different. The 450 uses a larger diameter swing arm bolt, and the width of the rear mount point may be different.

The CDI, coil, and harness will only work if they can be matched up to the generator harness on the 450.

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