KB735 Forging-A Piston Designed with a Step and a Quench

KB735 is a forged step dish piston that minimizes the bad effect of spark scatter and dissimilar burn rates, cylinder to cylinder, and cycle to cycle. See tech article "Magnificent Quench"for the reasons this happens.

KB735 compression with a 64cc head is 9.6:1. Use our "Effective Compression Ratio Calculator" to determine whether your cam, compression and fuel choice make sense.