in 2007 2 pro built engines showed up at Nationals one dynoed 1 hp more than the other but 4 ft/lbs less Tq. care to guess the one with 88 pistons vs early LC pistons....

lc pistons made one more hp but a few less Tq . within dyno error

side note. if we spec out an after market piston it will be an over bore with low compression. other wise it would be a must have item...