Running No Crank Pulley?

Hey guys hope you are safe out there....I wanted to ask if its ok to run my 60 series detroit engine with no crank pulley?

I recently installed electric fans so basically no need for any belts.

I have a new vibratech damper and pittsburg power balancer installed recently.

I know its a silly thing to ask but i want your thoughts since i have seen a aluminum crank pulley for 60 series.. so if you can run a lighter crank pulley then why then no pulley at all??

I do notice that the 60 series crank pulley has dimples in the back part...does this mean its balanced to the engine?

Thanks for any replys

 

They run off the water pump with 2 belts... a separete pulley system. Its a 97 engine.

 

So the crank pulley is a balancer?

I run mostly mid west to east and back .... i know its not summer yet and well the 4 fans i have on right now put out 10k in cfm total ... Most of the time i dont use them since the engine temp stays under 180f .... So far ive run the engine up about 190 and with just 2 fan temps will lower down to 175f ... this was at idle. I havnt gone up any steep grades yet.

 

Yea i got a vibratech damper and pittsburg power balancers on there right now and with no crank pulley the engine is pulling alot better and seeing a bit more mpgs

Well usually i turn on the ac on idle then back on when cruising but ive had it on on idle with just the 2 fans up top the ac blows pretty cold ... mind you they are 16inch fans... i posted on here with pics to show.... search for electric fans

 

Update guys i ended up putting the crank pulley back on... i wasnt too confident with the nuts i used for spacers.. but ill probably put that aluminum pulley from fitzgerald later on....i weighed the crank pulley at 16lbs and i saw some mpgs increase in just 600 miles without it on.