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Originally Posted by 1990eclipseGST
I needed a head for my gst and was woundering that the pros cons of putting the 420a head on my 4g63t. Also my intake or the 420a and same with exaust.
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There are no cons and you'll gain an extra 200hp. Also if you shave some of the head to increase compression, twin turbo it, and then put on some wide ass rear tires, you'll run 10's all day long.
Do some research n00b, the motors aren't even compatible.