Will stock valve covers clear a set of 660 springs and these rockers ????

 

shouldn't be any issues....is there a specific reason you think they won't clear stock valve covers? They appear to be stock rockers with a trunnion upgrade?...FWIW I used BTR .660 springs and they clear no problem...

 

Thanks, Well the motor already had tall valve cover when I got it, But they were not vented in any way. I have a Super charger and I think the motor needs to be vented when you are using a power adder. The stock valve covers will work the easiest for that I hope..

 

The Motor

 

Should.

Those look like stock rockers, maybe with a trunnion upgrade.

Nothing about "660 springs" is any different from stock, as far as fitment is concerned.

I see nothing about your purchase that is any different from stock in that regard.