Well I think most people know that the chevy small block was factory equipped with a harm. bal. also. We always b&b'd the motors as part of race prep and always left the harm bal. on as well. In fact, pulleys were never even worried about with race motors. There is so much more power in all the other aspects of a motor. Anyways, there is a thread around here. I think the pulley should be ok on this motor barring imperfect aftermarket pullies.

I hear, though, that the DOHC motors in the stangs are adversely affected by pulley swaps and the SOHC motors are not. Any thoughts?

 

The pullies are balanced, anyone with a high rpm electric motor could check this. All these pullies do is reduce the moment of inertia the engine has to overcome, thus freeing that energy to be used on your wheels.

 

We could arrange a day that is convient with your schedule, I'm switching to swings next week after years of graves so I will be sorts like a real person starting on the 15th!

When I get them I will PM you and check your schedule.

Being that the engine is internally balanced I think this will be a good engine mod, even on my LS1 it was a very popular mod and those were harmonic balancers for like 250 each for one and you didn't get to choose the color.

They are 10 % off this month too. Free belts would be nice, as you say I will wait and see what I get in the box.
Thanks J and all.

P.S I like your sponsor! I'm a RockStar fiend myself. Addicted to the stuff.

 

Cool, let me know bro

 

Back from the dead...any more input on whether its ok to run the lighter crank pulley w. a high output audio system?

 

For the most part, you should be alright...

 

I've read that it's only an issue if the pulley is underdriven like the UR Pulley. If it's just like OEM but lighter like the KJR Performance Pulley, you should be okay.