Well i was doing a valve seal job on my d15b7 and cracked one of the valve guides off. Was wondering 1 do i go to the local junkyard and get a replacment head, 2, get a SOHC vtec head for it, or 3, just send it off to a machine shop, about 100$. It hard to put a vtec head on, i need anything ealts besides the head? Also would porting or polishing the head help me at all, if so, how would i go about doing it

Ok, I don't own a civic but my G/F does and i work on it all the time. It isn't all that hard to Put a VTEC head on. But you would have to run an oil line from the head to the back of the engine and also get a VTEC ECU and then run some wires for your VTEC to even work. You might have to make some new dowl holes for the head to sit on the block right as well. As far as porting and polishing i would leave that to the professionals, beacuse when you port it you make the intake and exhaust port holes bigger and you really have to know what you are doing or else you could risk ruining your head.

But you would have to run an oil line from the head to the back of the engine and also get a VTEC ECU and then run some wires for your VTEC to even work. You might have to make some new dowl holes for the head to sit on the block right as well.
On a mini me you don't have to do that, those steps are for B series vtec conversions. You still have to wire vtec though.

in that case im just ganna send it out to the machine shop. I know it would be nice to have a vtec, but i realy cant afford a new head, and ECU. rather have a the solid reliable head im ganna have fixed