pistons
 

i have some hypereutectic pistons from silvolite made by Keith black and was wondering what a safe rpm limit would be on them im not sure what they will take

and will they take the abuse of some NOS like a 150 shot

I wouldn't attempt NOS on anything but forged pistons....I have heard too many horror stories about KB pistons.....ring gap is also critical on those.

jmo

yeah i was reading about the ring gap but my engine builder would be putting the bottom end together looking to get 500 + out of it and wanna rev it to 7000 so everything need to be down to a T i can build em but there still a lot i have to learn about making the big power ya know what i mean
thanks

I wouldnt spray on them pistons unless you have a BIG dust pan with the broom to match and a mop cause it will probally make a mess. I agree that to be safe forged piston are the only way to go. JMHO

If it were me I'd put those pistons on eBay and Craigslist and buy sum forged ones Keith Black Icons are a decient piston for the money and they are forged

Re: pistons
 

I WOULD Not use them PISTONS,for ASH Trays!
Seen several Sets,with Busted Rings Lands!In STOCK motors.
Later
G 8)

Pistons
 

The company that owns Keith Black and Icon was at the IMIS show at Indy a few weeks ago. I looked at the Icon pistons and their quality and finish were impressive. Icon is no longer marked as a Keith Blck brand, it is a seperate name now.

If you have not seen the New ICON pistons up close, don't judge them, they are a very good piston forging and are most all 2618 material. They are also very attractively priced.