Flat or Dished top pistons?

[tx2000gt]

I plan on doing a 331 here in a few months, and I'm starting to buy my parts. My plans are to go with a Hellion turbo, so I'd like to keep the compression low. Which of the two will lead to low compression, along with what other factors?

 

[Strype]

flat tops increase compression
dished lower compression

 

[tx2000gt]

Alright, but what's the difference between two and three valve reliefs, the piston head volume, and the compression distance?

 

[Strype]

Alright, but what's the difference between two and three valve reliefs, the piston head volume, and the compression distance?

 

[tx2000gt]

Lol, I don't know what I was saying...just what I was reading off of Summit. Anyways, I just want to know, what are some good pistons to have when running a .030 over block and a 331 stroker? I was looking at the JE pistons, but I don't really see why they should cost $300 more than the Trick Flow...anyone?

 

[DMAN302]

you're only dealing with two valves so I'm not certain how 3 reliefs would work?

 

[tx2000gt]

Ok, but are the JE forged pistons really that much better than the Trick Flow forged? Better enough to spend $300 extra on them?

 

[vristang]

Have the 3 valve cut pistons been cut for standard heads and for twisted wedge heads?

I would pick the heads first, then decide how much dish you will need for the desired compression ratio from there.

jason