d16z6 to replace d16y7?

Hi Guys,

I know it's a bit backwards, but what would it take to put a d16z6 from a wrecked 95 Civic ex into a 1996 Civic dx that currently has a rod knocking d16y7 motor? Both are manual, so I hope it's just a switch out and plug and play. Never done one before, but gotta see if I can. Thanks!

And can d16y8 pistons and rods fit into a d16y7 motor? Sorry for being so Civic illiterate.

No help?

If you can sift through all the garbage and can be patient, start searching through honda-tech.com, i'm sure someone's tried it or knows about it.

The first thing i would check is if they are both obd2. If not you'd have to get a conversion wiring harness, which they do make for these but might not be worth it. Do you happen to have a wrecked 95 sitting around? They make just about the same power, so if youre shopping, you might just wanna look for the same motor.

Honda-Tech has too much garbage to sift through. Go here http://www.hybrids.jp/forum/. The median age is at least 10 years older. GRM's DILYSI Dave post over there. You will get a lot clearer information faster.

I don't believe it will be plug and play with the OBD2 electronics.

OBD2 D series motors have a crank position sensor at the crankshaft (OBD1 and OBD0 were inside the distributor) under the timing belt covers, I'm not sure if the Z6 block will allow you to bolt the OBD2 crank sensor in place.

Also the Y7 distributor will not bolt up properly to the Z6 head. You may be able to get 2/3 bolts in if you're lucky or do some modifying to the bolt slots.

Easiest way to make this swap work is to convert to OBD1

Just convert your car back to obd1, and then it should be a easy swap. which tranny are you going to use, the y8 tranny should bolt up to the z6, considering they are both d series motors, the benefit being the longer gearing. The z6 takes to a turbo very well in case your looking for alot more power, lol.

Check out http://www.d-series.org/

Thanks guys! I'm checking out d-series.org and the hybrids link. My plan was to yank out the entire y7 and drop in the z6 motor and tranny to get the '96 up and running, then rebuild the y7 over the winter with y8 pistons I can get cheap. Eventually I would like to get the wrecked '95 body up on a frame machine and if I can straighten it out, build a turbo for the z6 and swap everything back into the original cars. I'm also working on an '81 Civic body that I'd like to drop the z6 turbo into just for the Challenge for '10, then get really wild for '11!

Thanks guys! I'm checking out d-series.org and the hybrids link. My plan was to yank out the entire y7 and drop in the z6 motor and tranny to get the '96 up and running, then rebuild the y7 over the winter with y8 pistons I can get cheap. Eventually I would like to get the wrecked '95 body up on a frame machine and if I can straighten it out, build a turbo for the z6 and swap everything back into the original cars. I'm also working on an '81 Civic body that I'd like to drop the z6 turbo into just for the Challenge for '10, then get really wild for '11!

I have a 92 Japanese Civic Si-R B16A in my 2000 Civic CX. You'll be fine.

Dseries motors are dime-a-dozen and can really really take a beating.

If this is a street car Check out your states smog rules. going backwards makes life much more difficult in some states. you will be going from ob2a to ob1. If the smog stuff is a deal breaker, y8s are not expensive, or you could very well trade the z6 for a y8. Another route is to buy someones discarded by virtue of a swap 96-00 y5 (the needlessly loathed and misunderstood lean burn hx motor). the long block is identical in every way to the y8, just swap you head or rocker assy over. I have picked up 2 running y5's in the last couple years for $50 each.

why would you even bother to straighten a 95 frame, hit up your local junk yard or fine one cheap with a blown engine, they are a dime a dozen...

Andrew

Thanks for the tip Shaun. I would love a y5 for the awesome gas mileage. I do a 1000 mile round trip 3 times a month and it would be perfect for the long haul. As for straightening the 95 frame, I would because the body is mint other than that corner, and it is that awesome aqua green that I love.

Why put the Y8 pistons into a Y7? I haven't seen that swap.

Just go buy some suzuki vitara pistons, get them coated by swaintech, and turbo it. problem solved.

In reply to dmidknight:

FYI- using a y5 block in place of the dead y7 block is hunky dory. They are functionally the same thing. Getting the whole system to be a y5 requires a different engine harness or a fair amount of splicing, a $100 or so 5 wire o2, a different intake manifold with an expensive high temperature solenoid on it, a different ecu, and different injectors. when I suggest using a y5 long block, I mean use it to get your y7 set-up going again. use all the same y7 stuff past the long block. Y7s get pretty good mileage anyway. The suggestion to use a y5 LB is based on the general ricer disregard for hx motors, thus they discard them cheap from the desirable coupes when they swap in (whatever). They think the y5 is worthless. In fact the Hx setup is really cool, and the roller rocker assembly is gorgeous.

Keep it all Y7, just replace the part that is broken unless you really want a project. Increasingly states are plugging into the cars (in your case) ob2 port when you go to get smogged. If your car does not cough up all the right systems according to the puter they are using: fail. Oregon just switched, and they have no referee workaround for modified cars (that I can find) yet.

keep it simple. In fact, I am going to say disregard my previous y5 advice- look for a y7 motor some one is dumping after a swap. those are cheap enough. plug and play.

Thanks for the advice Shaun. I've been on the lookout for a y7, and have seen a few heads for sale, but no bottom ends that are in good shape. I'm gonna go ahead and pull the motor this weekend and see how bad it is. Rod is knocking, but don't know how much damage has been done. It was shut down immediately I am told, but we will see. If the bores are good and I have to change pistons, I'll check out the Vitaras.