LatinoRichy

Hi, I've got a 93 Si and am saving up for an engine swap. I wanna do a b series swap but am not sure which one to get either the B16a2 or spend the extra $1200 or so and get the B18C which only has about 10 hp more than the b16. Is the B18 worth the extra money or should I just get the B16 and spend the extra money modding that engine.
I use the car as a daily driver, gas is somewhat of an issue b/c i drive from brmptn to T.O daily, and would maybe like to put a turbo in the future.

imported_wajih1

Go with B18 if you want more power, it only has 10 more hp but it also has i think 15 more torque, to gain this much power on a NA b16 you would spend close to a 1000. Gas wise b16 would obviously be better, but in my opinion go with the b18c.

imported_hdave

depends

do u wanna save a grand?
or squeeze out every last hp and lb-ft of tq?

if all power is what your going for then go for the b18c
if not, then just get the b16

Double_B

lots of info out there. Here is the pro's and con's I grabbed from Honta Tech on all the B engines. Anyone can agree or disagree, but this has been covered many times in here and other forums.

B16
These can be found in the JDM SIR and SIRII (among other JDM cars, which I don't claim to know all of which it came in) as well as the USDM 99-00 SI (EM1) and the 99-00 Canadian SIR.

Pros
160 hp stock
High RPM power
Fairly inexpensive
Good transmission
DOHC VTEC

Cons
113ft/lbs torque (very little more than a D16z6 stock)
Without knowing what you're looking for you can end up with a high mileage JDM model
Under 4k or so it feels just like a D16

B18B
This is the motor in the non Type-R and non GSR Integra.

Pros
Good torque for a 1.8L (127 ft/lbs)
Inexpensive (even cheaper than a B16)
142 hp (more than any stock D series)
Boost heads love them

Cons
No VTEC
Longest B series transmission

B18C1 (or JDM B18C)
These come out of an Integra GSR.

Pros
Good Hp and TQ numbers (170, 121 ft/lbs respectively)
DOHC VTEC
Tons of potential
High revving

Cons
Expensive
Becoming moreso as people keep scooping them up
Slighty longer tranny than the ITR and B16

B18C5 (or JDM B18C)
This is found in the Integra Type-R. IMHO this is the best swap for a Civic.

Pros
GREAT HP and TQ numbers (195 and 134 ft/lbs)
High revving
Hand built motor from Honda
Optional factory LSD
Best transmission for a B series from the factory
Red valve cover

Cons
EXPENSIVE
If JDM ITR is used, the 36mm axle 32mm hub problems occur

B16B
This is the motor found in the Civic Type R found all over the world.

Pros
185 hp 117 ft/lbs
High revving
Good top end power
Red valve cover

Cons
Expensive- almost as much as an ITR for lower performance
Very little torque still, have to rev the motor to make power

B20

Pros
Great torque (133 ft/lbs)
good boost motors
inexpensive
B20z=146hp

Cons
Thin cylinder walls
Have to peice together a swap for a Civic (can't drop it in with a B20 tranny)
Won't pass BAR (light truck motor in a car)
Low hp in the B20b(126 hp)

LEITNER

go gsr. since thats what you are asking. personaly id save for the type r

newman

I would save for the R. I can't really justify the extra money on a GSR over a B16, for what it offers.

imported_torscot

i went with the b16 over the gsr, im happy i did, i saved some money that i used for i/h/e. its tru what they say about no power under 4000rpm but thats why you just down shift, if you stay in the power band while bangin gears its a fun lil motor, im not to do another swap for more power, this is fine till i get my s2000, lol!

Type_R Del Sol

Type r