friend of mine needs a new motor in his 90 ls. Rather than go with a b18b1, why not use a b20 block? he has a mild turbo setup, so I figure the 2.0 would yield more power. How involved is this setup? does there need to be motor mount modification, or is it a drop-in deal? would the compression rise if I keep the b18 head? would this be a good way to go, or hsould I just stick with a 1.8?

 

Yes u can use both the b18b and b20's. They will require some wiring, since your 1990 integra is OBD0 and the new b18b/b20 are either obd1/obd2. Other than that its a drop in. Your stock mounts will work, but u MUST keep ur LS tranny, since the newer b18b/b20 tranny's are Hydro and yours is cable. B20+ turbo is a sexy setup, but so is b18b turbo. Find out where u can find a cheap longblock and go from there

 

if you're going to use the b20 block I HIGLY recommend you resleeve the cylinder sleeves since they are very thin to begin with.

 

If I do go with a b20, would it be a good idea to keep the b20 head or put on the old b18 one?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lord Helmet &raquo;</TD></TR><TR><TD CLASS="quote">if you're going to use the b20 block I HIGLY recommend you resleeve the cylinder sleeves since they are very thin to begin with. </TD></TR></TABLE>

they make a block saver for those right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TJ99si &raquo;</TD></TR><TR><TD CLASS="quote">

they make a block saver for those right?</TD></TR></TABLE>

yeah but you have to understand that the b20 cylinder wall is VERY thin. it doesn't take that much boost to throw a rod out or put a hole in the block. Resleeve the block and you will will be fine. The blockguard is a temporary band aid for a big and expensive problem to happen. I wouldn't be too concern if you where planning to run it NA and not under boost.