Quote Originally Posted by 2000ex View Post
you'll diff know if you bent a valve. d series are the only one i've in counter that you can barely tell if you bent a valve.
when i bent a valve in my jdm d15b. i though i was 1 teeth off timing, car still pull strong.
when my buddy unplug a 1 spark plug wire in his ls, it barely run, let alone drive.
it'll puff like a bitch. when a cylinder is down
not necessarily we've had several ls v's and didnt know the valves was bent till the boost went on and then a leak down test done! and ran really well too it just barely had a slight skip at idle and it was 2 exhaust valves so that would explain it not smoking was just losing slight compression out the exhaust side as the bends were slight not too drastic though. depends on the nature of the bens ive seen some barely bent to snaping off and busting the piston and ruining the head. so with the compression being that big a difference on the one cylinder i would not rule out bent exhaust valves.