Are cast pistons ok?

[emd513]

I was told by a guy that has a machine shop that cast pistons will not be good for our cars. I found several diff companies that make my size pistons, but if the ones I have will be fine even in high revs then I'm not going to worry, and just see about buying new wrist pins that lock. The pistons I have are made by Rock, a company out of California. I was told by the import shop that they are pretty good. But if there not going to be good enough for high reving all motor then I'm just going to make this dickhead take them back and buy the JE ones I found, or another company that were cheaper but forged and the write ups are the same. What do you guys think, let me know asap please, I need to figure out what to do by friday.

 

[mirrorimg]

I dont believe you can modify the style of wrist pin a Piston takes. You have a piston that the pin gets pressed into. Apparently, you need one with a floating wrist pin. I dont understand why thats the case, unless the pistons you have wont have the proper clearance to fit onto the rods. For my ITR style pistons, the rods had to be machined a bit to have enough movement at the pin.

The stock pistons are cast, and they see up to 9000RPM in stock form (ITR, albeit the cranks are balanced more than the other models).

 

[emd513]

I called my machinist and he said they don't have the slots for locking pins so that want work. I'm going to get forged pistons. Just hadn't decided on keith black je or weisco. Are they any write ups here that u know of I can check out

 

[emd513]

oh sorry the reason i need floating with locking pins is im running eagle rods and they are designed for a floating pin not a set pin in the rod