i just ordered new springs for cam swap on my new shortblock my old one crapped out at 37000 miles. well any way when i took the heads off the old motor they are 241 castings on a 2000 motor, and the springs just didint look right to me. i just looked around and found out that they were the green ls6 springs did they come stock on those heads ? cause when i baught the car i didint know what it had in it i later on found out it had a 3500 stall so just seeing if it had a baby cam maybe, it didint sound any diffrent just curious untill i take the motor out and tear it apart