heads
 

i have a 1990 honda civic ex . i want to make it a vtec. what car do i take the heads from.

assuming it will work, which Im not entirely sure it will, you can use a vtec head from a jdm d15b vtec, d16z6, or d16y8

heads 2
 

what car and what year can i find that in.

for the z6 and y8, any civic ex 92-00 or 92-95 civic si
the d15b vtec head will have to be imported
(the usdm d15b7 is NOT vtec)

What is your current motor code?

or assuming it hasn't been swapped tell us what trim your car is and we could probably tell you