Originally Posted by 451Mopar
The ICON 687KTD is likely the best "Forged" performance piston for the price.
ICON 687KTD 1.912" CH, -4.5cc valve/dome, 674 grams 1/16", 1/16", 3/16" ring pack. $664.99 (price includes piston rings)
https://www.summitracing.com/parts/uem-ic687ktd-030
This has a slight dome, but overall compression is not that high. with a 84cc head like an Edelbrock or open chamber stock head (usually > 84 cc chamber) and a 0.040" head gasket, compression ratio is only about 9.5:1



The KB 400 is sort of like the ICON 687, but compression height is less at 1.908", and dome is a bit larger so -6cc overall chamber difference. Overall the compression ratio is just a tad higher than the ICON 687. My sample calc = 9.5298:1 compared


The Icon 687 has a net positive dome volume and will give a 0.5 higher compression ratio than the KB400 which has a net zero dome volume. Both decent choices as is the 2315.