no thanks i have 7 freaking longblocks sitting in my apartment right now waiting,to get built 4people that im not even touching till after feb.14 Lol i will be more then happy to help him with info thats no problem but TErry summed it up..if you try anf use gsrs on a ls crank minus the piston sticking out the cyl about 1mm the motor will knock like crazy on start do to the rod having so much room to slide....