If I am going to be building the bottom end with aftermarket pistons and replacing the head, is there any difference in power output between a JDM B20B and B20Z?

 

No!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jaker &raquo;</TD></TR><TR><TD CLASS="quote">No!</TD></TR></TABLE>lol

 

The differences are all in the cams and pistons. If these are to be discarded, there is no difference between the B and the Z.

 

a buddy of mine is doing a b 20 vtec with boost he suggests the b20 b thats what he has but they are basically the same bottom end!

 

The only difference is the compression ratio.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMHatchBizzle &raquo;</TD></TR><TR><TD CLASS="quote">If I am going to be building the bottom end with aftermarket pistons and replacing the head, is there any difference in power output between a JDM B20B and B20Z?</TD></TR></TABLE>

If your building it it doesnt matter what you use... the bare blocks are the same

 

Right on RS_H22

 

doesnt one of those blocks have a higher stock redline?..im probably wrong here

 

But is because of the internals, not the block it self. He will replace them anyways.

 

one is japanese one is american..good luck

 

NO actually they are BOTH JDM... the B20B went from 96-98 and the B20Z went from 99-01

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dampachi_EH3 &raquo;</TD></TR><TR><TD CLASS="quote">NO actually they are BOTH JDM... the B20B went from 96-98 and the B20Z went from 99-01</TD></TR></TABLE>
umm then they are both usdm as well...there is only a jdmb20b no jdmb20z there is a usdm b20b which i 97-98 and 99-01 is the usdm b20z

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EKsnatchback &raquo;</TD></TR><TR><TD CLASS="quote">
umm then they are both usdm as well...there is only a jdmb20b no jdmb20z there is a usdm b20b which i 97-98 and 99-01 is the usdm b20z </TD></TR></TABLE>
the jdm b20b, has the same compression #'s as the usdm b20z. the reason why the us has the 20bz, is because of customers complaining for the crv's lack of power! so in 00, honda brought in the b20z motor to resolve that issue!

 

B20Z starting in 99 actually.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jaker &raquo;</TD></TR><TR><TD CLASS="quote">B20Z starting in 99 actually.</TD></TR></TABLE>
thankx for the correction

 

um people seem to get this stuff mixed up all the time

OKAY this is the way it

95.5-98 JDM B20B has P3F pistons 8.8
99-00 JDM B20B has PHK pistons 9.6

96-98 USDM B20B has P3F pistons
99-00 USDM B20Z has PHK pistons
** THIS IS FACT GUYS***

Rumors- ALL JDM MOTORS have PHK high compression pistons thats BS
Okay, this IS confermed, I just dunno what it is, its a 9.2 compression B20B that still has P3F pistons in JAPAN... I know NOTHING about this motor.. someone please inform me.

_________________________________________________
Everything below the line is just MY opinion

95.5-97 b20's have 95 stamped on them
This was the first revision

98+ have 98 cast on them


after comparing a few of the, I have come to the conclusion that the 98 stamped blocks are stronger and have a different casting method with the single sleeve design

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EKsnatchback &raquo;</TD></TR><TR><TD CLASS="quote"> there is only a jdmb20b no jdmb20z </TD></TR></TABLE>

wrong, there is a jdm b20z.