Ok, I have been doing a lot of research but would like a second opinion and maybe a little clarification.

I have a '93 5spd Civ EX. I believe it has the D16Z6 stock (whopping 125hp crank). Head gasket went, motor has over 200k so time for a new one.
I am just looking to drop a low mileage motor in thats slightly faster than the D16Z6 to use as a beater car. So I am not looking to make it quick or anything, just quicker than stock so I can maneuver in traffic. Here are my options I think.... which would be best for the price...

D15B SOHC - $495 (102hp) - Disregard this one
D15B SOHC VTEC - $550 (130hp)
ZC D16A - SOHC VTEC - $650 (128-130hp)
B18B DOHC Non-VTEC - $750 (140hp??)
B20BNon-VTEC - $800 - (126hp)
B16A DOHC VTEC - $1050 (170hp - too much work to be worth it??)
H22A- $1000 (200hp - Trying not to do suspension and tran mods unless it can be done extremely cheap)
H23A - $1000 (200hp - Trying not to do suspension and tranmods unless it can be done extremely cheap)
96-00 D16A Non-VTEC - $675(Don't know hp of this motor)
96-00 D15B - $575 (Don't know hp of this motor)

Not doing the install myself. Shop said ~ $400 if its a straight drop in with no mods needed.

With the H series motors I will either need the plates or new transmission, then suspension mods, prob cost too much.
The B18B doesn't seem too bad, as long as it drops right in and will work with my stock 5spd trans on the EX

If theres any other mods for the B series like for the trans to work I think I may go with the D15B that i listed second or the ZC D16A


What do you guys think? I was looking at the F series motors from the accords, but doubt that they fit in.

 

Id do the b18b. It will drop in, but you will need a b series trans, it will not work with your Z6 tranny.

If its a no-go with the b18b non-vtec, my 2nd would be the B20B.

The D15B VTEC is the same motor as your d16z6, except for stroke and comp. (D15B is 9.6:1 and Z6 is 9.4:1)

H22a will need a cut firewall and prelude shifter box put in.

 

Same thing with B20B need a B series Trans for it? If thats the case I will probably go D15B, tryin to put a motor in on a budget.

Thanks!

 

i have a 95 ex coupe and somebody did the d15b swap before i bought it, and i have driven a 92ex with the factory engine and i couldnt tell a difference in performance so dont expect much

 

If you were gonna go with the B20B i would just spend the extra $250(that you have listed) and get the B16, more power, but you will STILL need a bseries tranny, and Integra shifter linkage(which you will need for any Bswap)

And as for the D15B Vtec, and the D16z6, as mentioned before they are almost the exact same motor, except for some block internals. but they have almost the same HP (maybe 1hp in the difference) and almost the same torque

 

i like to tell people 7 lol

 

ok so it is 5hp and 4lb/ft of torque, still nothing that you would notice

 

Just get another Z6... and just so you know, (for the most part) if you change to a different series engine (B,D,F,H,K), you'll need to get the accompanying transmission

 

theres a lot of people that say a b16 is worthless and not worth the money blah blah blah.
but it is still my favorite engine and it fits really nicely in the engine bay and its basically a bolt in swap. and if you get the 2nd gen (B16A2 w/ OBD1) it will go right in because it was designed to be put in your car chassis. but its still a b-series and will require a new tranny, driveshafts, ecu, etc. (everything that comes in a swap package). so its gonna cost a little more.

if you are wantin to save money then just get another z6 and reuse everything else that is still in there. you can do a lot to a z6 to make it fast just search for some of the old project threads

 

why is it your favorite motor? Please elaborate