Tried searching. Problem is the query limitation of the "two character" rule doesn't allow me to search "LS".


I am trying to salvage a set of Crower LS rods I have.


LS rod length 5.394"
GSR/ITR length 5.433"


I want to utilize either a GSR or ITR block (more likey GSR due to cost).


What I want to know is can I used the LS rod and if so which crank should I use ... the LS or GSR?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tunedek &raquo;</TD></TR><TR><TD CLASS="quote">Tried searching. Problem is the query limitation of the "two character" rule doesn't allow me to search "LS".


I am trying to salvage a set of Crower LS rods I have.


LS rod length 5.394"
GSR/ITR length 5.433"


I want to utilize either a GSR or ITR block (more likey GSR due to cost).


What I want to know is can I used the LS rod and if so which crank should I use ... the LS or GSR?</TD></TR></TABLE>

You can use the ls rods in a gsr block. You'll have to use the ls crank as well, it's essentially an stoker kit for the gsr, increasing the overall displacement. I believe some machine work has to be done to the gsr block for clearance, and possibly modifying the pistons so they'll fit on the ls rods.

 

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

You can use the ls rods in a gsr block. You'll have to use the ls crank as well, it's essentially an stoker kit for the gsr, increasing the overall displacement. I believe some machine work has to be done to the gsr block for clearance, and possibly modifying the pistons so they'll fit on the ls rods. </TD></TR></TABLE>

So if I understand you correctly ... I can use LS rods, LS crank in a GSR block.

As far as pistons go ... I plan on purchasing some aftermarket pistons as well so I guess I should just go with some LS pistons as well.

You mentioned it strokes it ... what does it change displacement to?

 

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

So if I understand you correctly ... I can use LS rods, LS crank in a GSR block.

</TD></TR></TABLE>

Yes, but with some modifications.

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


As far as pistons go ... I plan on purchasing some aftermarket pistons as well so I guess I should just go with some LS pistons as well.

</TD></TR></TABLE>

I'd get more info before you intend to purchase, JIC. I've never built a setup like this before, I'm just reiterating hear-say

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

You mentioned it strokes it ... what does it change displacement to? </TD></TR></TABLE>

Roughly increases the displacement around 40cc or so, the difference b/w the ls and gsr's displacement. You're essentially building an ls/vtec but without the need for an external vtec oil supply line and other misc. hardware.

 

Thanks for the help.

If anyone else wants to chime in ... that'd be appreciated too.

I need to crack open the book and write down all the measurments.

*sigh* I always told my teachers I'd never used math; hate it when I am wrong.

 

to fit the ls rotating assembly in a gsr/itr block you need to bend the oil squirters abit to clear.

 

stock pistons that fit on standard bore are LS pistons, pr3 and p30 pistons. so if u go aftermarket, buy a set thats compatible with these pistons.

 

i'm pretty sure this isn't going to work for you. GSR and LS block heights are different. LS is taller for the bigger 89MM stroke. all B series wrist pins are in the same location that's why you can swap out all the different pistons but not the rods.

now, if you order custom pistons from somebody who really knows their sh*t, like Endyn Racing, they'll make a set with the wrist pin located in the correct location so your piston deoesn't give your head and valves a high five when you turn it over.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by leftcoast &raquo;</TD></TR><TR><TD CLASS="quote">GSR and LS block heights are different</TD></TR></TABLE>

really? hmm, i never knew that.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by leftcoast &raquo;</TD></TR><TR><TD CLASS="quote">i'm pretty sure this isn't going to work for you. GSR and LS block heights are different. LS is taller for the bigger 89MM stroke.
</TD></TR></TABLE>


http://www.raceseek.com/honda_specs.htm

According to this all B18's have the same block height. i would think the gsr has a longer rod to make up for the shorter stroke. that way the block heights could stay the same. my .02

 

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


http://www.raceseek.com/honda_specs.htm

According to this all B18's have the same block height. i would think the gsr has a longer rod to make up for the shorter stroke. that way the block heights could stay the same. my .02</TD></TR></TABLE>

that's what i thought too, then again, that site says 'vtech'

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by leftcoast &raquo;</TD></TR><TR><TD CLASS="quote">i'm pretty sure this isn't going to work for you. GSR and LS block heights are different. LS is taller for the bigger 89MM stroke. all B series wrist pins are in the same location that's why you can swap out all the different pistons but not the rods.

now, if you order custom pistons from somebody who really knows their sh*t, like Endyn Racing, they'll make a set with the wrist pin located in the correct location so your piston deoesn't give your head and valves a high five when you turn it over.</TD></TR></TABLE>

you must be thinking of the b17a and b16a blocks. all b20b/z, b18a/b/c/c5, and b16b blocks are the same height.

 

then why hen you go to a honda dealership are there three different belts with different lengths? b16, 18c and 18b\a all have different part numbers? i asked for a integra belt and they had to know if she was vtec or not, otherwise they wouldn't sell it to me cause they said b18's are not all created equal.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by leftcoast &raquo;</TD></TR><TR><TD CLASS="quote">then why hen you go to a honda dealership are there three different belts with different lengths? b16, 18c and 18b\a all have different part numbers? i asked for a integra belt and they had to know if she was vtec or not, otherwise they wouldn't sell it to me cause they said b18's are not all created equal. </TD></TR></TABLE>

The belt is different because the vtec water pump has more teeth to slow it's speed down at the higher rpm that vtec engines turn.All the b18's are the same height.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by leftcoast &raquo;</TD></TR><TR><TD CLASS="quote">then why hen you go to a honda dealership are there three different belts with different lengths? b16, 18c and 18b\a all have different part numbers? i asked for a integra belt and they had to know if she was vtec or not, otherwise they wouldn't sell it to me cause they said b18's are not all created equal. </TD></TR></TABLE>


amount of teeth on the water pump. the b16a/b17 have a shorter dech height thats why they have a smaller belt, but the only difference between the 1.8's is the teeth,

 

that's so weird but it makes sence. so it really just depends on the water pump you run in order to determine which belt to run.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by leftcoast &raquo;</TD></TR><TR><TD CLASS="quote">i'm pretty sure this isn't going to work for you. GSR and LS block heights are different. LS is taller for the bigger 89MM stroke. all B series wrist pins are in the same location that's why you can swap out all the different pistons but not the rods.

now, if you order custom pistons from somebody who really knows their sh*t, like Endyn Racing, they'll make a set with the wrist pin located in the correct location so your piston deoesn't give your head and valves a high five when you turn it over.</TD></TR></TABLE>

you my friend don't have a dam clue as to what you are talking about.the b16 is the only one that has a different d/h.the following have the same d/h which is 8.340
b18 a/b/z except the b20 has the bigger bore.the b18c/c1/c5 are all the same.


you just contradicted yourself in the first paragragh.all be series have the same c/h
and pin size.866 but the strokes are different.so if you use and ls crank in a gsr block all you will have to do is bend the oil squirters a little or take them out.so now that we are using a ls crank in a gsr block....you can do 1 of 2 things here.you can use stock ls rods and pistons just fly cut the vale reliefs,ls 29 and vtec heads are 31mm.

i have built this set using a a 95mm stroke and jdm stock b16a pistons..i built this motor 8 yrs ago....if you are not going w/forged internals .you can use the following.b18 a/b/c/c1/c5 b16 all of them...and any others out there that are 81mm or you can also bore to and have a bigger choice.

now if you use let's just say a civic type r piston which is 10:6:1 w/a 77mm STROKE...key word .now you take this piston and put it on a longer stroke it will raise the comp. because you are taking in more air....do you get the picture here.

 

1700anddropping ...

thank you. this is what I was looking for. learned some good info here.

yes i see the picture ... bigger stroke = more air = more = more = more.

but at what point does the stroke (rather stroke as a component of piston speed) become so much that you start jeopardizing bearings, rings etc?

research research and more. as soon as i think ive figured out how i want to build my setup NA i learn something new. its good though.

thanks for the help

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tunedek &raquo;</TD></TR><TR><TD CLASS="quote">1700anddropping ...

thank you. this is what I was looking for. learned some good info here.

yes i see the picture ... bigger stroke = more air = more = more = more.

but at what point does the stroke (rather stroke as a component of piston speed) become so much that you start jeopardizing bearings, rings etc?

research research and more. as soon as i think ive figured out how i want to build my setup NA i learn something new. its good though.

thanks for the help </TD></TR></TABLE>


it depends on your r/s and what you plan on reving to.take a motorw/a r/s of say 1.41 and rev it to 9k"see how long that lasts "this is w/a stroke of at least say 95.now take that same motor and make the r/s 1.70 w/the same stroke.rev it to 9k and see and HEAR the difference let alone FEEL IT.