i have a b18c1 with a spun bearing. a freind just gave me a ls crank and rods. i want to put the ls rods on my gsr pistoins. will this work in my gsr block? and what will i have to do to make it work?

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99' civic ex coupe
00'si front clip
si tail lights
kfg lowering coil overs
gsr wheels for teh street and 91 crx si wheels for the track
b18c1
back on the road and running like a champ!