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Hey everyone. I just purchased my first Honda! It’s a 98 civic ex Coupe with 5 speed. I bought the car in pieces. The body is in great shape. The previous owner ought it as a project. The motor failed. I bought it because it came with a “new”(to me) engine. Ive never had a small car or import. The spare engine is a y7. It doesn’t have VTEC on the head. I’ve pulled the head from the bad engine to see if I can swap it. It’s soaking in simple green right now. I hope the old head can be cleaned up enough to be reliable. My memory card failed so I’ll have to take some more pictures. I’ll spend hours looking through threads but will need some help. I purchased head gasket set, belt, water pump, and distributor. Thanks I. Advance. PS, I’m in north MS and would like to see if there are some other inthusiast around.
 

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you have in the works whats called a mini-me, also known as a vtec head swap.

It works in your advantage. instead of a full d16y8 like the EX originally would have come with, you have a franken-Y8 that has a nice bump in compression, since the d16y7 head uses a larger head chamber and a smaller piston dish.

Its good for a noticeable bump in power, mpg, and snappiness. Nothing to write home about, but in a situation like this, its a great little bonus.


It will run perfect on the original EX ecu, so no worries.


Find a smooth, clean piece of granite countertop and a good piece of glass, some 800, 1200, and 2000 grit sandpaper and WD-40, and you could get the head surface cleaned up pretty well, as long as the head is free of damage. Take the camshaft out and inspect the bore of the cam mains for debris and scorring prior to use.

Be sure to search about this swap, as there is an oil jet you need to pop out of the d16y7 block in order to provide oil pressure to the vtec system, else you will get more practice swapping motors.
 

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Thanks for the replies everyone. The car looks great. It’s low. Very low. Top of the back tires are leaning in at the top.
Simple green is a degreaser. I don’t know if it will hurt the valve seals. Two of the valves are partially stuck open so I’m going to have to remeove them. The cam has some groves on the tops of the lines that I’m worried about. I’m trying to get this running on the cheap.
 

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That block can potentially be saved if you DO NOT TURN IT OVER, and pour some auto trans fluid in each bore and let it soak for 3-4 days. then do a disassembly and check it out.

If not interested in trying to keep it, I might be interested in the bare block and oil pan for a table idea, if shipping can be done cheap enough (under $100)
 

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Thanks again for the encouragement. I haven’t opened the “good” engine yet but the head is cleaning up well. Finally got the valves out and will try to finish cleaning soon. I want to start a build thread. Gonna look around and see where to put it.
Look how well it cleaned up so far. Two of the valves were stuck. I’ll have to finish cleaning them, replace the seals, polish the ports and chambers, and reassemble. There are marks on the lobes that worry me though.



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The camshaft is showing some signs of wear and tear, but Id have no fear of running it as long as you grab some 1200 or 1500 grit sandpaper and wet sand it just a touch to remove any small burrs that might be on it. Use WD-40 as a lube.

Just to clean it up. No reason to have it a mirror finish, as that might take too much material away.


If you have a chance at a clean camshaft or perhaps a regrind or aftermarket one, that is a future possibility for ya.
 

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Discussion Starter #11
Can’t thank you enough for that. I’ll pick some up and start my build thread. Man the more I look the more I find to do. Going to be a journey. Have to finish my sons room and nursery before diving in deep. Going to have a daughter very very soon.
 

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Seeing that pitting on the exhaust lobe I'd throw it out and see if the rockers need to be replaced too.
 
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