Just as it says!
I, personally, feel the .230 is MORE than adequate.
From thinnest to thickest of the aftermarket pistons:
.160" under the crown - Wiseco pistons (over 730rwhp recorded on these via 7MPower.com)
.230" under the crown - JE Pistons (over 620rwhp recorded on these via 7MPower)
.260" under the crown - Ross Pistons (none of the top 10 @ 7MPower recorded using Ross pistons)
For comparison - an LS2, with a 4.06" bore, Probe uses a .180" under the crown. Running a 102mm turbo, they ran 1100rwhp through it, when the tossed a rod through the block.
Remember, these are FORGED pistons - not cast.
To me, I look at what is out there - from .160" to .260", and the middle is .210"
.230" is, to me, perfectly fine. Extremely robust, and will handle anything thrown at them.
BUT - I told Shawn I would put this to a vote in the community. So here it is.
.245" or .230" thickness? It's an extra 4 grams of weight for the .245"
I, personally, feel the .230 is MORE than adequate.
From thinnest to thickest of the aftermarket pistons:
.160" under the crown - Wiseco pistons (over 730rwhp recorded on these via 7MPower.com)
.230" under the crown - JE Pistons (over 620rwhp recorded on these via 7MPower)
.260" under the crown - Ross Pistons (none of the top 10 @ 7MPower recorded using Ross pistons)
For comparison - an LS2, with a 4.06" bore, Probe uses a .180" under the crown. Running a 102mm turbo, they ran 1100rwhp through it, when the tossed a rod through the block.
Remember, these are FORGED pistons - not cast.
To me, I look at what is out there - from .160" to .260", and the middle is .210"
.230" is, to me, perfectly fine. Extremely robust, and will handle anything thrown at them.
BUT - I told Shawn I would put this to a vote in the community. So here it is.
.245" or .230" thickness? It's an extra 4 grams of weight for the .245"