boostup240sx
01-22-2015, 12:03 AM
hey there zilvia, i just got my head back from the machine shop. i had the head surfaced, valve seats done, valves re-ground and a 30° back cut, brian crower springs and retainers, and the valve stem guides done. now this is my first time going to this particular machine shop, and from the looks of it, i wont be going back. From what i can tell, when he pressed in the new bronze guides he cracked the originals and there is definitely excess brass hanging down. I am concerned about the cracked ones falling out and getting sucked into my turbo. please input.