can you use a y7 head on a y8 block???
Thread Starter
New User
Joined: Sep 2009
Posts: 2
Likes: 0
can you use a y7 head on a y8 block???
i had just recently bought my first honda a couple of months ago from a buddy witch is a 98 civic dx.well he blew the motor witch origanally had a y7 in it but is blown so i bought a full y8 swap and put in it and the dude told me i could use my y7 head and not use the vtech and i would gain compession but this guy i had just recently met told me that i could not if someone could please help me out it would be wonderful cus if not i have to buy a new ecm and wiring harness but i am wanting to get this finished today so please can someone guide me in the right direction i know i am new at this but come on we all have a love for hondas!!!
Last edited by SoUrEdHaLo; Oct 20, 2009 at 10:00 AM.
Honda-Tech Member
Joined: May 2009
Posts: 155
Likes: 0
Re: can you use a y7 head on a y8 block???
its a waste to put a y7 head on, maybe you gain more compression but you also lose vtec. the d16y7 makes 106hp the d16y8 makes 127. why would you want to lose power. plus with the vtec head the intake plenum is much better as is the throttle body. there is no reason to goto a y7 head
Honda-Tech Member
Joined: Aug 2008
Posts: 1,349
Likes: 1
From: Ciudad Obregon, Sonora
Re: can you use a y7 head on a y8 block???
It works just like a y7.
You know uou dont HAVE to use the y8 ecu right?
You can swap in the y8 and use the y7 ecu. You just wont have vtec
Its the opposite of what you wanna do
Instead of swapping heads in order to avoid buying a new ecu ($50) just use the y7 ecu in order to not swap heads
You know uou dont HAVE to use the y8 ecu right?
You can swap in the y8 and use the y7 ecu. You just wont have vtec
Its the opposite of what you wanna do
Instead of swapping heads in order to avoid buying a new ecu ($50) just use the y7 ecu in order to not swap heads
Thread Starter
New User
Joined: Sep 2009
Posts: 2
Likes: 0
Re: can you use a y7 head on a y8 block???
the reason i used the y7 head is because my wiring harness doesnt have the plug for the vtech silenoid so i figured the head wouldnt work right if it wasnt plugged in..so since i have a 98 dx does that mean i already have an obd2 ecm and i would only have to switch wiring harnesses or how could i make my wiring harness work???also i had acidentally broke this peice off the front left side of my auto tranny and my ecm clicks now and makes wierd noises so i thought the y8 maybe wasnt compatible with the y7 ecm..so i got the y7 head on and had everything hooked up right and it wouldnt start.it was getting fire and gas just wasnt getting no air so i am thinking its my valves on the y7 but if i just switch over to the y8 even with the y7 wiring harness should it run after that????
Last edited by SoUrEdHaLo; Oct 21, 2009 at 05:13 PM.
Thread
Thread Starter
Forum
Replies
Last Post
style'n_DC2
Honda Civic / Del Sol (1992 - 2000)
9
Jan 17, 2009 12:33 AM
