ok, so i been research about building a lsvtec, i have a b16a in my rex, my friend have a gsr in his teg, at about the same time we both be building up our motor.
my friend been talking about doing all motor on his car. so i thought well do lsvtec and since he won't able to afford to pay me labor, well i thought about keeping the gsr block, and i build the b18b1 botton end for him.
i then relize i can use a b18b1 crank on the gsr and use ls rod and piston(which i using forged piston and rod) i have not research much about ls crank on gsr block. but i was thinking is isn't the same with lsvtec?? gsr block and b18 block is same deck height right? 87mm stroke on gsr and 89 on b18?
so my power output should be the same with a lsvtec? but by saving me from lsvtec kit and gsr have stronger gridle?(spelling)
this is what i plan to do
lsvtec piston and rod 9.5:1 with b16a head (cp and eagle rod)
acl race bearing (main and rod)
arp head stud(i already have that on b16a, unless is different anyone knows is different or not?)
arp rod stud
nippon turbo rings
blox retainer and valve spring(but i be using gsr cams, i have a set of gsr spring laying around can i using the double spring on one side?)
motor be bore out to 81.5mm

if i use the gsr block and ls crank, will it be the same building lsvtec?
same forged piston and rod that they say is for lsvtec.

i building this for turbo motor, looking at boosting around 12lbs, looking at making 350whp if possible.
thx

 

yes if you use the gsr block with ls crank it will still be an LSvtec. and yes it will still be using the same pistons/ rods you would use for a b18a/b engine. you will probably have to bend the squirters to clear the crankshaft if you use the gsr block though. make sure they spray at the underside of the piston and not at the cylinder wall. if they spray at the cyl wall too much they may apply more oil than the control rings can handle.

you could use the ls block with the power levels you are expecting. you shouldnt have a problem without the girdle.

also i would just use the piston rings that would come with your CP pistons. i'm not familiar with the nippon turbo rings.
and you can run daul springs with the gsr cams which i would recommend doing if you are looking to turn some RPM.
the eagle rods will come with good rod bolts.

whichever block you decide to use. i would measure the bores and see if they are round and straight and if they are within spec. this may allow you to run a std size (81mm) piston and still get your desired piston to wall (.003ish) and have a fresh hone finish. you would just have to have your machinist hone them to final size. this will leave you with a little more sleeve for your turbo setup.

 

hell, that just save me few cost, i got about 4g to play with. as little i can save, the more other part i can go to.
as for arp head stud, i already have it on my b16a setup, if i use gsr block i can use that on it right? i check the gsr motor have a different number on arp, but b16a and b18c5 have the same part number, which b18c5, is b16a head on b18c motor, well beside other different internal. if yes, then that just save me some more money.
and that some good info, thx.

oh one more thing, if i decide just use the gsr block, but forged internal other then sleeve, how much can i able to boost safely, i know 10lb safely on a stock, but not sure with forged internal.

 

your headstuds should work fine.
you can make upwards of 500 on stock sleeves and im sure there are guys out there making more. the MOST IMPORTANT thing is that you have a good tune. all the best parts in the world dont amount to **** if the tune is off.

so choose wisely when it comes to your tuner and please tune it right away. dont listen to anyone that says, go put 1000 miles on with this basemap.

 

Not sure why you're posting this in the "all motor" forum, you will get more and better information from the "Force Induction" forum.
But anyways, 12 lbs. doesn't mean anything, build your setup according to your HP goal. 350 is very attainable on stock sleeves and stock bottom end. I've seen it personally in my buddy's build that makes 370'ish whp on a stock gsr bottom end. Only thing done to the head is dual springs, S2 cams, S2 IM and 70mm Omni TB