im rebuilding a ls going to boost when im done but using all stock parts because i wanna bar the motor, my question was with a gsr crank will it make a diff in power and at the reff station??

 

WHAT ?????????? you wanna bar the motor????? power at reff station??????

 

o should of stated every thing well i want my motor to be street legal, and about the power im running a 14b on the stock ls will a gsr crank help me make more power or should i stick to the stock one???and if i leave the gsr crank will it make me fail smog at the reff station

 

No, a GSR crank will yeild you less power due to the smaller stroke. The GSR crank will have no negative effects on the ref. If you use a GSR crank your going to need to change the rods and pistons.