Originally Posted by 1turbofocus
Yes you can swap the heads but the ZX3 head is just as good , your zx3 should go to 6250 just like the zx2 does
For better performance add a SVT header , intake , TB and a tune and you will see about a 20% gain in performance
uhhh zx2 goes to around 7k... definatly not 6250?
but regardless if it revs more or not, you will need to get a vct delete if you want to use a zx2 head, and the vct deletes for the zx2 are hard to find... unless you can figure a way to wire in the use of the vct into your engine.
the vct is variable cam timing and it's on the exhaust cam (unlike the intake cam on the svt engines).