A ls has a longer stroke than the gsr thats why it produces more torque with ls vtec setups. To deal with the " no oil squirter" problem I plan to use forged pistons. From what Ive read they handle the heat alot better. The golden eagle ls vtec conversion kit is the head conversion kit im going to use. Then golden eagle also makes a bottom end girdle kit with is in the 400 range and it holds the bottom end from moving around and such. It comes with gsr oil pickup, some other gsr oem parts, and then the straight bolt in golden eagle girdle. Its just pretty much how you build it is whats going to make it last. They say the rods and rod bolts are weak im going to use arp rod bolts and some forged lighter rods. Theres a place I dont remember the name of it. But they had a lsvtec setup with stock head and I think stock internals except for like type r pistons and revved it to 8600 or so and they said in a straight line it pulled just as hard as an h22. A gsr is great factory reliable power. But if you wanna do something different and if you do it right itll last. Thats totally my opinion though.