Can i use any 4G63 parts on my 420A? i have quiet a bit. Thanx.

im gonna go out on a limb and say no. mainly because of the 2 different makes of the motor. ofcourse turbos are pretty much universal if u can find a manifold for your ride. if u want a better answer you'll need to be more specific as to what parts. goodluck.

Very few if any 4g63 engine parts are swappable that I know of (I'm no expert tho). We share quite a bit outside of that tho. I know GS-T suspension parts are the same, as well as our cat-back exhausts.

I'm sure someone will chime in and give you a more specific answer :)

hows about NO!?

sell your parts to me and invaznGST, were 4g63 guys.

You can use:

stock turbo
intercooler
injectors (need 2gnt o-rings and a resistor pack)
fuel pump
all suspension components providing it's FWD
cat back exhaust
braking components (GSX calipers and rotors are a big upgrade for us)

valve springs are also the same between 420a and 4g63, but NOT the retainers

You can use the 1G fuel rail for an 8-injector setup.

You can use a bunch of bolts from your 4g63 car on your 420a and wonder why you're missing so many bolts when you go to put the 4g63 back together... :rolleyes x( x(

The lifters are very similar. I don't know if they would be interchangable or not, but they are very similar, and have the same bore size.
-=B-=