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View Full Version : zc dohc headers fit vti hatch ???


EG5[KRT]
05-12-2005, 05:38 PM
i wanna know if non vtec dohc d16 headers will fit d16y1 engine sohc vtec

in an EG ????
nedgeworth
05-12-2005, 06:02 PM
Yes it will, although it will require a little bit of modding to fit correctly.
Weq
05-12-2005, 07:47 PM
all d-series have the same exhaust manifold bolt patterns. yes.
EG5[KRT]
05-12-2005, 10:56 PM
are u really really sure ????

i dunt wanna wast this dudes time by saying yes but when the shiet hits the fan and it dont fit im down a few $$$ >.<
nedgeworth
06-12-2005, 07:26 AM
As Weq said the bolt patterns are the same. As far as i'm aware with fitting d16 headers to a ZC you need to do a little trimming around the outta edging of the bolts. I suspect you might have to do the same going the other way round with them.

If in doubt find a new buyer with a ZC.
jimmeh
06-12-2005, 07:56 AM
the b series headers are interchangeable i dont see y these wouldnt be
egSi
06-12-2005, 08:51 AM
they wil fit but there were not designed for a y1 a zc. but some headers dont differ much anyways
bennjamin
06-12-2005, 12:10 PM
As said , ALL D series headers have the same exhuast port stud pattern and basically the same dimensions...small things such as the oil sump or primary/secondary lengths differ between (D series) engines so from the head down there maybe some modification to fit.

As always , trial fit a header first at the workshop or at home to find out what is needed to fit !
n/a
09-09-2006, 01:15 AM
As said , ALL D series headers have the same exhuast port stud pattern and basically the same dimensions...small things such as the oil sump or primary/secondary lengths differ between (D series) engines so from the head down there maybe some modification to fit.

sorry to bring old post back. ben when you mean "some modification to fit" are would one expect? simple or completely custom?
n/a
09-09-2006, 02:57 AM
found the answer.. a little grinding of the header is involved when interchanging a SOHC header to a DOHC.
hyrpm
09-09-2006, 08:44 PM
what is needed to be grinded
turtleEK1
09-09-2006, 09:00 PM
i've seen a stock d16y4 header put on a ZC no worries... it didn't require any modifications...
n/a
10-09-2006, 01:46 AM
what is needed to be grinded

the ports on the header itself, grinded back to line up perfectly with the engine ports.

turtle the headers will line up and run, but turbulence is messed up and considerable hp is lost. if i was to put aftermarlet headers i'd want them to run better than the stock one.
Limbo
11-09-2006, 05:33 PM
just be careful of US spec headers as they have a tendency of hitting the clutch slave. I brought a US spec b series header and it hit the clutch slave was no way around it other than cutting the pipe and remaking it to bend a different direction. Alot of fuss for nothing.

Just cos the Amercians drive on the wrong side of the road ;p
hyrpm
11-09-2006, 09:48 PM
so if u bought sohc d series header and put them in my dohc d16a8 crx they will fit and line up with the rest of the exhaust but i will have to grind the ports to match the dohc gasket
n/a
12-09-2006, 02:25 AM
so if u bought sohc d series header and put them in my dohc d16a8 crx they will fit and line up with the rest of the exhaust but i will have to grind the ports to match the dohc gasket

yes, but not only gaskets but also the ports on the block.