Originally Posted by MonsterBilly
I have a set of scorpion roller rockers on my engine and I have a set of aluminum heads. they are noisy as well. In fact, you can here them at idle when you stand bhind, and beside the car. I also have a loud exhuast. I have just gotten used to it.
yea I have 1.7 rrs on x302 aluminum heads and it sounds like a sewing machine under the valve covers. Some rrs are just noisy
Op if you can get a video of the noise up maybe someone can tell you if its an abnormal sound.