Log in

View Full Version : B18c7 or b20 block?


CTR_EK9
13-09-2012, 05:51 PM
Hi guys, just need some help out here and decide what's best for me. If it was in your shoe would you rebuilt your b18c7 block? Or get a fully fresh built b20 block? Which of these 2 block is better,higher rev, last longer, etc... Got 4g to spent!! Thanks guys
infurNOS
13-09-2012, 06:53 PM
What are the future plans? Stay NA or Turbo? If you were to stay NA go the B20 block, if turbo, then rebuild B18c7 block for low comp!
CTR_EK9
13-09-2012, 07:00 PM
I would stay N/A... What make you think b20 are better then the b18c7?
infurNOS
13-09-2012, 07:01 PM
I would stay N/A... What make you think b20 are better then the b18c7?

Just saying better torque and overall power from the 2.0L block for an NA.

Nothing wrong with the B18c7 though..
CTR_EK9
13-09-2012, 07:19 PM
Your right but some people's say that b20 are not design for high rev and also it's not reliable then the b18c right? (lol im a noob)
infurNOS
13-09-2012, 07:21 PM
Your right but some people's say that b20 are not design for high rev and also it's not reliable then the b18c right? (lol im a noob)

Not necessarily. It's all about the tune. If the engine is tuned right it will have no problems revving high, People upgrade the rod bolts and head studs just for piece of mind, but not a necessity
CTR_EK9
13-09-2012, 07:30 PM
Ohk.. With the b20 block it will bolt onto pr3 head perfectly right? Also the gearbox as well??
infurNOS
13-09-2012, 07:39 PM
Ohk.. With the b20 block it will bolt onto pr3 head perfectly right? Also the gearbox as well??

Yep. But you also need a VTEC conversion kit to supply the head with oil. A lot of information about B20VTEC swaps on this forum!

Pretty much all B series hydro gearbox will fit up to any B series block!
CTR_EK9
13-09-2012, 07:48 PM
Cool.. Thanks for the help :) any others comment are welcome!!
gen2 CRX
13-09-2012, 08:19 PM
B20s are good too if they are built right
dougie_504
13-09-2012, 09:01 PM
If a rebuild is necessary id go b20

Or go b18 and get a 2.1L stroker kit :D
newpaddy3
13-09-2012, 09:41 PM
Ohk.. With the b20 block it will bolt onto pr3 head perfectly right? Also the gearbox as well??


Yep. But you also need a VTEC conversion kit to supply the head with oil. A lot of information about B20VTEC swaps on this forum!

Pretty much all B series hydro gearbox will fit up to any B series block!

NO

You need to re-drill the B20 block to take the VTEC head bolts, they do line up though.

You will also need to use the VTEC water and oil pumps, just FIY.

There's a B20VTEC thread on here with lots of info, just do a search for it.
dougie_504
14-09-2012, 12:23 AM
http://honda-tech.com/showthread.php?t=1676914