Corinthians

I need to know wheter a b18c not sleeve or the b18a/b resleeve is better for boast
is there a lot of big difference since b18c crank rod and piston are interchangeble with b18a/b

X-Mazda 3 Racer

There is not too much difference between the two dimensionally:

B18C ( GSR )
87.2 mm stroke
81 mm bore
5.430" rod length
1.890 rod big end bore
.858" big end width
has oil orifice for vtec head
8.346 deck height ( 212 mm )
Has a tied-in 3 main girdle / 2 floating main caps

B18A/B ( LS )
89mm stroke
81 mm bore
5.394" rod length
1.890 rod big end bore
.935" big end width
does not have orifice for vtec head
8.346 deck height ( 212 mm )
5 floating main caps

That is about it. Either one is great for boost when sleeved, and both can make excellent power. The B18A/B is a bit less expensive and you get a few extra CC's. I like the LS personally, I like the TQ it makes

mrDFWmechanic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Corinthians &raquo;</TD></TR><TR><TD CLASS="quote">I need to know wheter a b18c not sleeve or the b18a/b resleeve is better for boast
</TD></TR></TABLE>

boast ??? ha ha whats boast. lol just messin with ya. just with my experience i'd stick with an ls

Corinthians

if i use a b18b bare block with b18c crank stoke and rod is it the same with b18c including that i grill hole for v-tec and so on and resleeve the b18b .B18c has a tied-in 3 main girdle / 2 floating main caps and b18b has 5 floating main caps can i use the b18c 3 main girdle /2 floating main cap on b18b?

mrDFWmechanic

just stick the b18b block and resleave it with pistons and rods

Darton Sleeves

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iROCKtheSOHC &raquo;</TD></TR><TR><TD CLASS="quote">just stick the b18b block and resleave it with pistons and rods</TD></TR></TABLE>

resleave???whats resleave? resleeve...j/k

For the money sleeve the LS.....

P.S. who cares what Vince likes!!!

Just kidding Vince, you dah meng....

Corinthians

the problem is i already bought rods and piston for b18c

-iLLuZioN-B18C1

if you never plan to sleeve the b18c1, then i would just do the b18b and sleeve like you mentionied...but if later down the road you want to go for more poiwer, then b18c1

NJIN BUILDR

Th gsr rods, pistons and crank will fit right in the ls block.You lose a little displacement and gain a little better rod/stroke ratio.Go with the sleeved ls block.
Glenn

Corinthians

how about b18c piston and rods with b18b crank and stroker?

NJIN BUILDR

Nope.B18c rods are narrower on the crank end and would have to much side clearance.Secondly with the increased stroke the piston would stick out the top of the block at tdc.
Glenn