B18c head on B20 block

[DA9B18C]

hey, i have searched and cant find a straight answer.

what are the benifits of putting a b18c head on a b20 block?
will it fit straight on with no mods?
are the physical dimensions the same as other b series blocks?

and finally, are there any power gains, what will it at the wheels dyno with stock internals, mugen 4-1 headers and short ram intake? just rough guess?

thanks guys

[barefootbonzai]

It will give you VTAKKKKKKK

It's close to bolt on, just need a LSVtec Golden Eagle Kit which can be purchased from JDMYard i believe.

You will need new computer and some wiring done too. Gains will be anywhere between 1kw and 100kw... just a rough guess...

[Benson]

Benefits, extra torque which means power.

Dimension wise i think there the same. Just that the b20 has a 84mm bore and abit more stroke.

As for power gains, 1-100kw LOL

[DA9B18C]

ok sorry, mis understood, the setup will be:
b18c vtir head
b20 block
mugen 4-1 headers
and all the rest from a b18c vtir integra.

whats this about a LSVtec Golden Eagle Kit????? will i need it?

[ACTI0NMAN-1]

ok sorry, mis understood, the setup will be:
b18c vtir head
b20 block
mugen 4-1 headers
and all the rest from a b18c vtir integra.

whats this about a LSVtec Golden Eagle Kit????? will i need it?

You can source parts from other other places but that is the complete kit and will save you searching. Includes Oil line, Sandwich plate, Fittings, Dowel pins, head gasket ect..

I had all the parts ready to asseble, but then changed to the idea of a b18c.

http://img.photobucket.com/albums/v224/ACTI0NMAN/ozhonda/103_0150.jpg

if you have any other questions you can pm me.

[zco]

yes the Vtec conversion kit is a must. you cannot do a b20/b18/b16 without the GE VTEC conversion kit.

[ZeForce]

yes the Vtec conversion kit is a must. you cannot do a b20/b18/b16 without the GE VTEC conversion kit.

Well you could make up the oil piping line yourself if you have the know how and just use a OEM head gasket, but the GE kit would make life alot easier

[BlitZ]

... u also need to upgrade rod and head bolts

[ACTI0NMAN-1]

... u also need to upgrade rod and head bolts

yeh, i forgot about that, thats why i didnt go ahead with my lsvtec. was that i would have had to pull apart the block to swap rod bolts, then assemble. Too much work and margin of error was too large :(

[ZeForce]

Not really man, its actually not as hard as it sounds

[ACTI0NMAN-1]

Not really man, its actually not as hard as it sounds

yeah if you have the right tools.

[tinkerbell]

yeah if you have the right tools.

what? like a 10mm socket and a 14mm socket and a torque wrench?

[tinkerbell]

yes the Vtec conversion kit is a must. you cannot do a b20/b18/b16 without the GE VTEC conversion kit.

this is not true.

you can do the B20VTEC without a GE VTEC conversion kit

all you need is to:


close off the oil hole in the VTEC head (weld or use 1/8 pressure plug)

enlarge the two dowel holes in the head (drill matched to dowel pin size)

make a VTEC oil line (earls hose fitting - 800106, earls hose fitting - 806106, 3ft earls -6 prolite*hose - 350306)

remove the 3/8 pressure plug from the back of the head, add a 3/8 BSP to -6AN adaptor, (Pirteck or Enzed)

remove the oil pressure warning light switch and add a 1/8 BSPT to -6AN adaptor, (pirtek or enzed)

obtain a B20Bhead gasket (eg Cometic C4193-030 or OEM Honda)



and that should match the Kit, for a quite a few less bucks...

[tinkerbell]

hey, i have searched and cant find a straight answer.

what are the benifits of putting a b18c head on a b20 block?
will it fit straight on with no mods?

as well as the above, you also need a B18C timing belt, a B18C water pump

are the physical dimensions the same as other b series blocks?

yes

and finally, are there any power gains, what will it at the wheels dyno with stock internals, mugen 4-1 headers and short ram intake? just rough guess?

you need to tune it to get any decent power, withy that i'd say 100-110kW, more with cam gear and ECU tuning,

thanks guys

see bold

[string]

this is not true.

you can do the B20VTEC without a GE VTEC conversion kit

all you need is to:


close off the oil hole in the VTEC head (weld or use 1/8 pressure plug)

enlarge the two dowel holes in the head (drill matched to dowel pin size)

make a VTEC oil line (earls hose fitting - 800106, earls hose fitting - 806106, 3ft earls -6 prolite*hose - 350306)

remove the 3/8 pressure plug from the back of the head, add a 3/8 BSP to -6AN adaptor, (Pirteck or Enzed)

remove the oil pressure warning light switch and add a 1/8 BSPT to -6AN adaptor, (pirtek or enzed)

obtain a B20Bhead gasket (eg Cometic C4193-030 or OEM Honda)



and that should match the Kit, for a quite a few less bucks...

You do not need to do any modifications for dowels. You can buy new dowels for $25 that mate the vtec heads to non-vtec blocks. However this means you'll need to enlarge the dowel holes in the head-gasket. Though I think i'd rather get a new headgasket than modify the head. (Then again, I did get the vtec oil port in the head welded up so my logic doesn't really apply here).

I recommend the GE kit after doing it the other way. Boring out the stock headgasket with a drill felt a bit dodgey :D

[tinkerbell]

only some parts of your post make sense...

[string]

your post only just makes sense...
Took you a couple of reads to get it I see.

[tinkerbell]

Took you a couple of reads to get it I see.

yeah, no thanks to your cryptic and convoluted syntax...

[string]

only some parts of your post make sense...

maybe it felt weird as you are supposed to drill out the HEAD, not the head gasket?

Image: http://www.c-speedracing.com/howto/lsvtec/pics/dowelhole2.jpg

Make up your mind son.

There are TWO OPTIONS:

1) Bore out the head and use stock dowels
2) Get new dowels and not bore out the head.

There is nothing cryptic going on. Back to comprehension class.